Tag Archives: Irregular warfare

Toward An American Approach To Proxy Warfare

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U.S.-supported Philippine guerilla fighters led the resistance against the Japanese occupation of Luzon during World War II. [Warfare History Network]

U.S. Army Major Amos Fox has recently published the first two of a set of three articles examining nature of proxy warfare in the early 21st century and suggests some ideas for how the U.S. might better conduct it.

In “In Pursuit of a General Theory of Proxy Warfare,” published in February 2019 by the The Institute of Land Warfare at the Association of the U.S. Army, and “Time, Power, and Principal-Agent Problems: Why the U.S. Army is Ill-Suited for Proxy Warfare Hotspots,” published in the March-April 2019 edition of Military Review, Fox argues,

Proxy environments dominate modern war… It is not just a Russian, Iranian or American approach to war, but one in which many nations and polities engage. However, the U.S. Army lacks a paradigm for proxy warfare, which disrupts its ability to understand the environment or develop useful tactics, operations and strategies for those environments.

His examination of the basic elements of proxy warfare leads him to conclude that “it is dominated by a principal actor dynamic, power relationships and the tyranny of time.” From this premise, Fox outlines two basic models of proxy warfare: exploitative and transactional.

The exploitative model…is characterized by a proxy force being completely dependent on its principal for survival… [It] is usually the result of a stronger actor looking for a tool—a proxy force—to pursue an objective. As a result, the proxy is only as useful to the principal as its ability to make progress toward the principal’s ends. Once the principal’s ends have been achieved or the proxy is unable to maintain momentum toward the principal’s ends, then the principal discontinues the relationship or distances itself from the proxy.

The transactional model is…more often like a business deal. An exchange of services and goods that benefits all parties—defeat of a mutual threat, training of the agent’s force, foreign military sales and finance—is at the heart of the transactional model. However, this model is a paradox because the proxy is the powerbroker in the relationship. In many cases, the proxy government is independent but looking for assistance in defeating an adversary; it is not interested in political or military subjugation by the principal. Moreover, the proxy possesses the power in the relationship because its association with the principal is wholly transactional…the clock starts ticking on the duration of the bond as soon as the first combined shot is fired. As a result, as the common goal is gradually achieved, the agent’s interest in the principal recedes at a comparable rate.

With this concept in hand, Fox makes that case that

[T]he U.S. Army is ill-suited for warfare in the proxy environment because it mismanages the fixed time and the finite power it possesses over a proxy force in pursuit of waning mutual interests. Fundamentally, the salient features of proxy environments—available time, power over a proxy force, and mutual interests—are fleeting due to the fact that proxy relationships are transactional in nature; they are marriages of convenience in which a given force works through another in pursuit of provisionally aligned political or military ends… In order to better position itself to succeed in the proxy environment, the U.S. Army must clearly understand the background and components of proxy warfare.

These two articles provide an excellent basis for a wider discussion for thinking about and shaping not just a more coherent U.S. Army doctrine, but a common policy/strategic/operational framework for understanding and successfully operating in the proxy warfare environments that will only loom larger in 21st century international affairs. It will be interesting to see how Fox’s third article rounds out his discussion.

Has The Army Given Up On Counterinsurgency Research, Again?

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Mind-the-Gap

[In light of the U.S. Army’s recent publication of a history of it’s involvement in Iraq from 2003 to 2011, it may be relevant to re-post this piece from from 29 June 2016.]

As Chris Lawrence mentioned yesterday, retired Brigadier General John Hanley’s review of America’s Modern Wars in the current edition of Military Review concluded by pointing out the importance of a solid empirical basis for staff planning support for reliable military decision-making. This notion seems so obvious as to be a truism, but in reality, the U.S. Army has demonstrated no serious interest in remedying the weaknesses or gaps in the base of knowledge underpinning its basic concepts and doctrine.

In 2012, Major James A. Zanella published a monograph for the School of Advanced Military Studies of the U.S. Army Command and General Staff College (graduates of which are known informally as “Jedi Knights”), which examined problems the Army has had with estimating force requirements, particularly in recent stability and counterinsurgency efforts.

Historically, the United States military has had difficulty articulating and justifying force requirements to civilian decision makers. Since at least 1975, governmental officials and civilian analysts have consistently criticized the military for inadequate planning and execution. Most recently, the wars in Afghanistan and Iraq reinvigorated the debate over the proper identification of force requirements…Because Army planners have failed numerous times to provide force estimates acceptable to the President, the question arises, why are the planning methods inadequate and why have they not been improved?[1]

Zanella surveyed the various available Army planning tools and methodologies for determining force requirements, but found them all either inappropriate or only marginally applicable, or unsupported by any real-world data. He concluded

Considering the limitations of Army force planning methods, it is fair to conclude that Army force estimates have failed to persuade civilian decision-makers because the advice is not supported by a consistent valid method for estimating the force requirements… What is clear is that the current methods have utility when dealing with military situations that mirror the conditions represented by each model. In the contemporary military operating environment, the doctrinal models no longer fit.[2]

Zanella did identify the existence of recent, relevant empirical studies on manpower and counterinsurgency. He noted that “the existing doctrine on force requirements does not benefit from recent research” but suggested optimistically that it could provide “the Army with new tools to reinvigorate the discussion of troops-to-task calculations.”[3] Even before Zanella published his monograph, however, the Defense Department began removing any detailed reference or discussion about force requirements in counterinsurgency from Army and Joint doctrinal publications.

As Zanella discussed, there is a body of recent empirical research on manpower and counterinsurgency that contains a variety of valid and useful insights, but as I recently discussed, it does not yet offer definitive conclusions. Much more research and analysis is needed before the conclusions can be counted on as a valid and justifiably reliable basis for life and death decision-making. Yet, the last of these government sponsored studies was completed in 2010. Neither the Army nor any other organization in the U.S. government has funded any follow-on work on this subject and none appears forthcoming. This boom-or-bust pattern is nothing new, but the failure to do anything about it is becoming less and less understandable.

NOTES

[1] Major James A. Zanella, “Combat Power Analysis is Combat Power Density” (Ft. Leavenworth, KS: School of Advanced Military Studies, U.S. Army Command and General Staff College, 2012), pp. 1-2.

[2] Ibid, 50.

[3] Ibid, 47.

Afghan Security Forces Deaths Top 45,000 Since 2014

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The President of Afghanistan, Ashraf Ghani, speaking with CNN’s Farid Zakiria, at the World Economic Forum in Davos, Switzerland, 25 January 2019. [Office of the President, Islamic Republic of Afghanistan]

Last Friday, at the World Economic Forum in Davos, Switzerland, Afghan President Ashraf Ghani admitted that his country’s security forces had suffered over 45,000 fatalities since he took office in September 2014. This total far exceeds the total of 28,000 killed since 2015 that Ghani had previously announced in November 2018. Ghani’s cryptic comment in Davos did not indicate how the newly revealed total relates to previously released figures, whether it was based on new accounting, a sharp increase in recent casualties, or more forthrightness.

This revised figure casts significant doubt on the validity of analysis based on the previous reporting. Correcting it will be difficult. At the request of the Afghan government in May 2017, the U.S. military has treated security forces attrition and loss data as classified and has withheld it from public release.

If Ghani’s figure is, in fact, accurate, then it reinforces the observation that the course of the conflict is tilting increasingly against the Afghan government.

 

U.S. Army Releases New Iraq War History

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On Thursday, the U.S. Army released a long-awaited history of its operational combat experience in Iraq from 2003 to 2011. The study, titled The U.S. Army in the Iraq War – Volume 1: Invasion – Insurgency – Civil War, 2003-2006 and The U.S. Army in the Iraq War – Volume 2: Surge and Withdrawal, 2007-2011, was published under the auspices of the U.S. Army War College’s Strategic Studies Institute.

This reflects its unconventional origins. Under normal circumstances, such work would be undertaken by either the U.S. Army Combat Studies Institute (CSI), which is charged with writing quick-turnaround “instant histories,” or the U.S. Army Center of Military History (CMH), which writes more deeply researched “official history,” years or decades after the fact.[1] Instead, these volumes were directly commissioned by then-Chief of the Staff of the Army, General Raymond Odierno, who created an Iraq Study Group in 2013 to research and write them. According to Odierno, his intent was “to capture key lessons, insights, and innovations from our more than 8 years of conflict in that country.[I]t was time to conduct an initial examination of the Army’s experiences in the post-9/11 wars, to determine their implications for our future operations, strategy, doctrine, force structure, and institutions.”

CSI had already started writing contemporary histories of the conflict, publishing On Point: The United States Army in Operation IRAQI FREEDOM (2004) and On Point II: Transition to the New Campaign (2008), which covered the period from 2003 to January 2005. A projected third volume was advertised, but never published.

Although the Iraq Study Group completed its work in June 2016 and the first volume of the history was scheduled for publication that October, its release was delayed due to concerns within the Army historical community regarding the its perspective and controversial conclusions. After external reviewers deemed the study fair and recommended its publication, claims were lodged after its existence was made public last autumn that the Army was suppressing it to avoid embarrassment. Making clear that the study was not an official history publication, current Army Chief of Staff General Mark Milley added his own forward to Odierno’s, and publicly released the two volumes yesterday.

NOTES

[1] For a discussion of the roles and mission of CSI and CMH with regard to history, see W. Shane Story, “Transformation or Troop Strength? Early Accounts of the Invasion of Iraq” Army History, Winter 2006; Richard W. Stewart, “‘Instant’ History and History: A Hierarchy of Needs” Army History, Winter 2006; Jeffrey J. Clarke, “The Care and Feeding of Contemporary History,” Army History, Winter 2006; and Gregory Fontenot, “The U.S. Army and Contemporary Military History,” Army History, Spring 2008.

 

U.S. Army Doctrine and Future Warfare

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Pre-war U.S. Army warfighting doctrine led to fielding the M10, M18 and M36 tank destroyers to counter enemy tanks. Their relatively ineffective performance against German panzers in Europe during World War II has been seen as the result of flawed thinking about tank warfare. [Wikimedia]

Two recently published articles on current U.S. Army doctrine development and the future of warfare deserve to be widely read:

“An Army Caught in the Middle Between Luddites, Luminaries, and the Occasional Looney,”

The first, by RAND’s David Johnson, is titled “An Army Caught in the Middle Between Luddites, Luminaries, and the Occasional Looney,” published by War on the Rocks.

Johnson begins with an interesting argument:

Contrary to what it says, the Army has always been a concepts-based, rather than a doctrine-based, institution. Concepts about future war generate the requirements for capabilities to realize them… Unfortunately, the Army’s doctrinal solutions evolve in war only after the failure of its concepts in its first battles, which the Army has historically lost since the Revolutionary War.

The reason the Army fails in its first battles is because its concepts are initially — until tested in combat — a statement of how the Army “wants to fight” and rarely an analytical assessment of how it “will have to fight.”

Starting with the Army’s failure to develop its own version of “blitzkrieg” after World War I, Johnson identified conservative organizational politics, misreading technological advances, and a stubborn refusal to account for the capabilities of potential adversaries as common causes for the inferior battlefield weapons and warfighting methods that contributed to its impressive string of lost “first battles.”

Conversely, Johnson credited the Army’s novel 1980s AirLand Battle doctrine as the product of an honest assessment of potential enemy capabilities and the development of effective weapon systems that were “based on known, proven technologies that minimized the risk of major program failures.”

“The principal lesson in all of this” he concluded, “is that the U.S. military should have a clear problem that it is trying to solve to enable it to innovate, and is should realize that innovation is generally not invention.” There are “also important lessons from the U.S. Army’s renaissance in the 1970s, which also resulted in close cooperation between the Army and the Air Force to solve the shared problem of the defense of Western Europe against Soviet aggression that neither could solve independently.”

“The US Army is Wrong on Future War”

The other article, provocatively titled “The US Army is Wrong on Future War,” was published by West Point’s Modern War Institute. It was co-authored by Nathan Jennings, Amos Fox, and Adam Taliaferro, all graduates of the School of Advanced Military Studies, veterans of Iraq and Afghanistan, and currently serving U.S. Army officers.

They argue that

the US Army is mistakenly structuring for offensive clashes of mass and scale reminiscent of 1944 while competitors like Russia and China have adapted to twenty-first-century reality. This new paradigm—which favors fait accompli acquisitions, projection from sovereign sanctuary, and indirect proxy wars—combines incremental military actions with weaponized political, informational, and economic agendas under the protection of nuclear-fires complexes to advance territorial influence. The Army’s failure to conceptualize these features of the future battlefield is a dangerous mistake…

Instead, they assert that the current strategic and operational realities dictate a far different approach:

Failure to recognize the ascendancy of nuclear-based defense—with the consequent potential for only limited maneuver, as in the seventeenth century—incurs risk for expeditionary forces. Even as it idealizes Patton’s Third Army with ambiguous “multi-domain” cyber and space enhancements, the US Army’s fixation with massive counter-offensives to defeat unrealistic Russian and Chinese conquests of Europe and Asia misaligns priorities. Instead of preparing for past wars, the Army should embrace forward positional and proxy engagement within integrated political, economic, and informational strategies to seize and exploit initiative.

The factors they cite that necessitate the adoption of positional warfare include nuclear primacy; sanctuary of sovereignty; integrated fires complexes; limited fait accompli; indirect proxy wars; and political/economic warfare.

“Given these realities,” Jennings, Fox, and Taliaferro assert, “the US Army must adapt and evolve to dominate great-power confrontation in the nuclear age. As such, they recommend that the U.S. (1) adopt “an approach more reminiscent of the US Army’s Active Defense doctrine of the 1970s than the vaunted AirLand Battle concept of the 1980s,” (2) “dramatically recalibrate its approach to proxy warfare; and (3) compel “joint, interagency and multinational coordination in order to deliberately align economic, informational, and political agendas in support of military objectives.”

Future U.S. Army Doctrine: How It Wants to Fight or How It Has to Fight?

Readers will find much with which to agree or disagree in each article, but they both provide viewpoints that should supply plenty of food for thought. Taken together they take on a different context. The analysis put forth by Jenninigs, Fox, and Taliaferro can be read as fulfilling Johnson’s injunction to base doctrine on a sober assessment of the strategic and operational challenges presented by existing enemy capabilities, instead of as an aspirational concept for how the Army would prefer to fight a future war. Whether or not Jennings, et al, have accurately forecasted the future can be debated, but their critique should raise questions as to whether the Army is repeating past doctrinal development errors identified by Johnson.

Drones: The People’s Weapon?

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The DJI Matrice 600 commercial drone for professional aerial photography. Available for $4,600, a pair of these drones were allegedly used in an assassination attempt on Venezuelan President Nicolás Maduro in August 2018. [Wired]

Last week, the Russian Ministry of Defense claimed that its military air defense assets had shot down 45 drones in attempted attacks on Khmeimim Air Base, the main Russian military installation in Syria. The frequency of these attacks were increasing since the first one in January, according to Major General Igor Konashenkov. Five drones had been downed in the three days preceding the news conference.

Konashenkov asserted that although the drones appeared technologically primitive, they were actually quite sophisticated, with a range of up to 100 kilometers (60 miles). While the drones were purportedly to be piloted by Syrian rebels from Idlib Provence, the Russians have implied that they required outside assistance to assemble them.

The use of commercial off-the shelf (COTS) or modified off-the-shelf (MOTS) aerial drones by non-state actors for actions ranging from precision bombing attacks on combat troops, to terrorism, to surveillance of law enforcement, appears to be gaining in popularity.

Earlier this month, a pair of commercial drones armed with explosives were used in an alleged assassination attempt on Venezuelan President Nicolás Maduro. Daesh fighters in Syria and Iraq have been using drones for reconnaissance and to drop explosives and bombs on opposition forces.

According to Kathy Gilsinan in The Atlantic,

In 2015, Reuters reported that a protester flew “a drone carrying radioactive sand from the Fukushima nuclear disaster onto the prime minister’s office, though the amount of radiation was minimal.” Mexican cartels have used drones to smuggle drugs and, in one instance, to land disabled grenades on a local police chief’s property. Last summer, a drone delivered an active grenade to an ammunition dump in Ukraine, which Kyle Mizokami of Popular Mechanics reported caused a billion dollars’ worth of damage.

Patrick Turner reported for Defense One that a criminal gang employed drones to harass an FBI hostage rescue team observing an unfolding situation outside a large U.S. city in 2017.

The U.S. Defense Department has been aware for some time of the potential effectiveness of drones, particularly the specter of massed drone “swarm” attacks. In turn, the national security community and the defense industry have turned their attention to potential countermeasures.

As Joseph Trevithick reported in The Drive, the Russians have been successful thus far in thwarting drone attacks in Syria using air defense radars, Pantsir-S1 short-range air defense systems, and electronic warfare systems. These attacks have not involved more than a handful of drones at a time, however. The initial Syrian rebel drone attack on Khmeimim Air Base in January 2018 involved 10 drones carrying 10 bomblets each.

The ubiquity of commercial drones also raises the possibility of attacks on non-military targets unprotected by air defense networks. Is it possible to defend every potential target? Perhaps not, but Jospeh Hanacek points out in War on the Rocks that there are ways to counter or mitigate the risk of drone attacks that do not involve sophisticated and expensive defenses. Among his simple suggestions are using shotguns for point defense against small and fragile drones, improving communications among security forces, and complicating the targeting problem for would-be attackers. Perhaps the best defense against drones is merely to avoid overthinking the problem.

TDI Friday Read: Measuring The Effects of Combat in Cities

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Between 2001 and 2004, TDI undertook a series of studies on the effects of urban combat in cities for the U.S. Army Center for Army Analysis (CAA). These studies examined a total of 304 cases of urban combat at the divisional and battalion level that occurred between 1942 and 2003, as well as 319 cases of concurrent non-urban combat for comparison.

The primary findings of Phases I-III of the study were:

  • Urban terrain had no significantly measurable influence on the outcome of battle.
  • Attacker casualties in the urban engagements were less than in the non-urban engagements and the casualty exchange ratio favored the attacker as well.
  • One of the primary effects of urban terrain is that it slowed opposed advance rates. The average advance rate in urban combat was one-half to one-third that of non-urban combat.
  • There is little evidence that combat operations in urban terrain resulted in a higher linear density of troops.
  • Armor losses in urban terrain were the same as, or lower than armor losses in non-urban terrain. In some cases it appears that armor losses were significantly lower in urban than non-urban terrain.
  • Urban terrain did not significantly influence the force ratio required to achieve success or effectively conduct combat operations.
  • Overall, it appears that urban terrain was no more stressful a combat environment during actual combat operations than was non-urban terrain.
  • Overall, the expenditure of ammunition in urban operations was not greater than that in non-urban operations. There is no evidence that the expenditure of other consumable items (rations; water; or fuel, oil, or lubricants) was significantly different in urban as opposed to non-urban combat.
  • Since it was found that advance rates in urban combat were significantly reduced, then it is obvious that these two effects (advance rates and time) were interrelated. It does appear that the primary impact of urban combat was to slow the tempo of operations.

In order to broaden and deepen understanding of the effects of urban combat, TDI proposed several follow-up studies. To date, none of these have been funded:

  1. Conduct a detailed study of the Battle of Stalingrad. Stalingrad may also represent one of the most intense examples of urban combat, so may provide some clues to the causes of the urban outliers.
  2. Conduct a detailed study of battalion/brigade-level urban combat. This would begin with an analysis of battalion-level actions from the first two phases of this study (European Theater of Operations and Eastern Front), added to the battalion-level actions completed in this third phase of the study. Additional battalion-level engagements would be added as needed.
  3. Conduct a detailed study of the outliers in an attempt to discover the causes for the atypical nature of these urban battles.
  4. Conduct a detailed study of urban warfare in an unconventional warfare setting.

Details of the Phase I-III study reports and conclusions can be found below:

Measuring The Effects Of Combat In Cities, Phase I

Measuring the Effects of Combat in Cities, Phase II – part 1

Measuring the Effects of Combat in Cities, Phase II – part 2

Measuring the Effects of Combat in Cities, Phase III – part 1

Measuring the Effects of Combat in Cities, Phase III – part 2

Measuring the Effects of Combat in Cities, Phase III – part 2.1

Measuring the Effects of Combat in Cities, Phase III – part 3

Urban Phase IV – Stalingrad

Urban Combat in War by Numbers

Another Look At The Role Of Russian Mercenaries In Syria

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Russian businessman Yevgeny Prigozhin and Russian President Vladimir Putin. Prigozhin—who reportedly has ties to Putin, the Russian Ministry of Defense, and Russian mercenaries—was indicted by Special Counsel Robert Mueller on 16 February 2018 for allegedly funding and guiding a Russian government effort to interfere with the 2016 U.S. presidential election. [Alexei Druzhinin/AP]

As I recently detailed, many details remain unclear regarding the 7 February 2018 engagement in Deir Ezzor, Syria, between Russian mercenaries, Syrian government troops, and militia fighters and U.S. Special Operations Forces, U.S. Marines, and their partnered Kurdish and Syrian militia forces. Aside from questions as to just how many Russians participated and how many were killed, the biggest mystery is why the attack occurred at all.

Kimberly Marten, chair of the Political Science Department at Barnard College and director of the Program on U.S.-Russia Relations at Columbia University’s Harriman Institute, takes another look at this in a new article on War on the Rocks.

Why did Moscow initially deny any Russians’ involvement, and then downplay the casualty numbers? And why didn’t the Russian Defense Ministry stop the attackers from crossing into the American zone, or warn them about the likelihood of a U.S. counterstrike? Western media have offered two contending explanations: that Wagner acted without the Kremlin’s authorization, or that this was a Kremlin-approved attack that sought to test Washington while maintaining plausible deniability. But neither explanation fully answers all of the puzzles raised by the publicly available evidence, even though both help us understand more generally the opaque relationship between the Russian state and these forces.

After reviewing what is known about the relationship between the Russian government and the various Russian mercenary organizations, Marten proposes another explanation.

A different, or perhaps additional, rationale takes into account the ruthless infighting between Russian security forces that goes on regularly, while Russian President Vladimir Putin looks the other way. Russian Defense Ministry motives in Deir al-Zour may actually have centered on domestic politics inside Russia — and been directed against Putin ally and Wagner backer Yevgeny Prigozhin.

She takes a detailed look at the institutional relationships in question and draws a disquieting conclusion:

We may never have enough evidence to solve definitively the puzzles of Russian behavior at Deir al-Zour. But an understanding of Russian politics and security affairs allows us to better interpret the evidence we do have. Since Moscow’s employment of groups like Wagner appears to be a growing trend, U.S. and allied forces should consider the possibility that in various locations around the world, they might end up inadvertently, and dangerously, ensnared in Russia’s internal power struggles.

As with the Institute for the Study of War’s contention that the Russians are deliberately testing U.S. resolve in the Middle East, Marten’s interpretation that the actions of various Russian mercenary groups might be the result of internal Russian politics points to the prospect of further military adventurism only loosely connected to Russian foreign policy direction. Needless to say, the implications of this are ominous in a region of the world already beset by conflict and regional and international competition.

Chris Lawrence Interviewed About America’s Modern Wars

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TDI President Chris Lawrence was recently interviewed on The Donna Seebo Show about his 2015 book, America’s Modern War: Understanding Iraq, Afghanistan and Vietnam.

The 27 June 2018 interview can be listed to below.

 

Back To The Future: The Return Of Sieges To Modern Warfare

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Ruins of the northern Syrian city of Aleppo, which was besieged by Syrian government forces from July 2012 to December 2016. [Getty Images]

U.S. Army Major Amos Fox has published a very intriguing analysis in the Association of the U.S. Army’s Institute of Land Warfare Landpower Essay series, titled “The Reemergence of the Siege: An Assessment of Trends in Modern Land Warfare.” Building upon some of his previous work (here and here), Fox makes a case that sieges have again become a salient feature in modern warfare: “a brief survey of history illustrates that the siege is a defining feature of the late 20th and early 21st centuries; perhaps today is the siege’s golden era.”

Noting that neither U.S. Army nor joint doctrine currently addresses sieges, Fox adopts the dictionary definition: “A military blockade of a city or fortified place to compel it to surrender, or a persistent or serious attack.” He also draws a distinction between a siege and siege warfare; “siege warfare implies a way of battle, whereas a siege implies one tool of many in the kitbag of warfare.” [original emphasis]

He characterizes modern sieges thusly:

The contemporary siege is a blending of the traditional definition with concentric attacks. The modern siege is not necessarily characterized by a blockade, but more by an isolation of an adversary through encirclement while maintaining sufficient firepower against the besieged to ensure steady pressure. The modern siege can be terrain-focused, enemy-focused or a blending of the two, depending on the action of the besieged and the goal of the attacker. The goal of the siege is either to achieve a decision, whether politically or militarily, or to slowly destroy the besieged.

He cites the siege of Sarajevo (1992-1996) as the first example of the modern phenomenon. Other cases include Grozny (1999-2000); Aleppo, Ghouta, Kobani, Raqaa, and Deir Ezzor in Syria (2012 to 2018); Mosul (2016-2017); and Ilovaisk, Second Donetsk Airport, and Debal’tseve in the Ukraine (2014-present).

Fox notes that employing sieges carries significant risk. Most occur in urban areas. The restrictive nature of this terrain serves as a combat multiplier for inferior forces, allowing them to defend effectively against a much larger adversary. This can raise the potential military costs of conducting a siege beyond what an attacker is willing or able to afford.

Modern sieges also risk incurring significant political costs through collateral civilian deaths or infrastructure damage that could lead to a loss of international credibility or domestic support for governments that attempt them.

However, Fox identifies a powerful incentive that can override these disadvantages: when skillfully executed, a siege affords an opportunity for an attacker to contain and tie down defending forces, which can then be methodically destroyed. Despite the risks, he believes the apparent battlefield decisiveness of recent sieges means they will remain part of modern warfare.

Given modern sieges’ destructiveness and sharp impact on the populations on which they are waged, almost all actors (to include the United States) demonstrate a clear willingness—politically and militarily—to flatten cities and inflict massive suffering on besieged populations in order to capitalize on the opportunities associated with having their adversaries centralized.

Fox argues that sieges will be a primary tactic employed by proxy military forces, which are currently being used effectively by a variety of state actors in the Eastern Europe and the Middle East. “[A]s long as intermediaries are doing the majority of fighting and dying within a siege—or holding the line for the siege—it is a tactic that will continue to populate current and future battlefields.”

This is an excellent analysis. Go check it out.