By Dr Jacob Stoil

From the British conception of air policing to the myriad of coalition air assets deployed as part Operation Inherent Resolve, counterinsurgents have enjoyed their ability to be the sole force in skies and the plethora of benefits that brings. Throughout late 20th and early 21st century, there have been rare instances where insurgents have tried to either contest this or at the very least exploit the air domain for their operations. These include the development and deployment of the ‘Air Tigers’ of the Liberation Tigers of Tamil and Eelam (LTTE) and the more recent use of small unmanned aerial vehicles (UAVs) and unmanned combat aerial vehicles (UCAVs) by a host of actors including ISIS and Hezbollah. LTTE’s attempts were largely ineffective, and ISIS’s small UAVs have been only deployed for tactical effects. Assumedly developing a counter to this ISIS threat will be part of the broader effort to deal with the UAV threat writ large. In Gaza, Hamas has developed something different and is going back in time technologically to exploit the hybrid space and launch an air campaign.

In late May 2018 Israeli security forces identified an explosive-laden UAV launched by one of the militant groups from the Gaza strip. In the same month, the Israeli Air Force (IAF) destroyed a Hamas base containing unmanned underwater vehicles. Both these capabilities while impressive represent an evolution of what combatants have already observed the world over. Militant groups increasingly have the capabilities to employ low-cost unmanned systems in a variety of domains. The interesting evolution out of Gaza strip is not the use of advanced technology by militant groups but a return to simple and cheap solutions.

Over the past month, militants in Gaza have launched numerous strikes using incendiary devices attached to kites and balloons. These devices come in several forms; some are kites released on to the wind current carrying flaming material and accelerant dangling from a rope. Others are helium balloons (or helium-filled condoms) with trailing flaming materials and accelerant. Although there are variations most of these carry metallic mesh pouches contacting burning oil-soaked rags or coal. These take advantage of the dry summer conditions in Southern Israel to spark fires out of proportion to the amount of accelerant. In addition to these, there are varieties with small impact based explosive devices attached and more recently explosive devices designed to litter the ground.

This is the past returning. During the Second World War, the Japanese military was unable to bomb the mainland US and turned to balloons with incendiary devices as an attempt at a solution. By 20 June 2018, 75 days of balloon and kite attacks had seen over 700 attacks which burned over 6,100 acres of primarily agricultural land causing millions of dollars of damage. For Israel damage to its agricultural sector presents a serious threat given the relatively small amount of arable and pasturable land.

Iron_Dome_Battery_Deployed_Near_Ashkelon
An Iron Dome battery at Ashkelon, c. 2011 (Source: Wikimedia)

The balloon and kite launched devices present significant challenges to the Israeli military (IDF). Due to their low signature, they are harder to detect than UCAVs. Unlike rockets and mortars, they do not follow a set trajectory making counter battery fire more difficult. They are cheap and therefore employing short-range air defence such as Iron Dome makes little sense. The helium-filled condoms which trail burning liquids or rags may only cost as much as the helium (condoms are distributed in Gaza by the Palestinian Authority and international NGOs) while Iron Dome costs near $100,000 per launch. Other forms of Counter Rocket Artillery and Mortar systems rely on a more prominent radar profile and are designed for point defence not protecting a whole broader.

The biggest challenge they pose may result from their place in the narrative domain. Often launched by teams including children, balloons and kites do not seem as threatening as other, more significant, more conventional types of attacks. Targeting those who launch them with lethal force would likely play poorly in the media and the international community overall. Unlike rockets and mortars, kites, and balloons – no matter the threat they may pose – are not often thought of within the panoply of tools of war. In this way, they are emblematic of an entire strategy – namely causing as much strategic threat as possible while remaining below the threshold of escalation. In his 1991 book The Transformation of War, Martin van Creveld identified the challenge this strategy poses to conventional state militaries stating: ‘Since fighting the weak is sordid by definition, over time the effect of such a struggle is to put the strong into an intolerable position.’[1] The kite and balloon attacks represent a new form of air power for insurgent groups which takes advantage of exactly this dynamic. As of now these attacks also provide a narrative victory to the militant groups allowing them to showcase in video and photo their ability to reach out and attack Israel. If the success of the balloon and kite attacks continues, we can safely assume they will spread. The more they are featured in regional media and militant media the more likely this is to happen.

So what options exist to counter this counter this new aerial threat? Thus far the IDF has looked to technological solutions deploying cheap commercial UAVs to bring down the kites and the balloons through physical contact. The Israeli public broadcaster Kan reported that this has had mixed results. The IDF has recently deployed a new system called Sky Spotter. The IDF employs this electro-optical system, to identify and provide an alert of incoming attacks mitigating the damage caused. Sky Spotter also serves to guide defenders to the incoming targets. There are plans to equip Sky Spotter with a laser system or to the ability to autonomously vector mini-UAVs. In the meantime, with an increase in the threat, some Israeli officials have suggested targeting those launching the attacks, and the IAF has begun firing warning strikes near those launching the attacks. As previously noted this tactic is rife with problems.

Another possible solution might be retaliating against targets and in doing so establishing deterrence. Although this might work in the unique operating environment of Gaza it is doubtful it would be as possible if another insurgency adopts this new use of air power globally. Just as lookouts may be more useful for identifying incoming attacks from balloons and kites than more high-tech radar, so too might defeating the threat requiring an examination of the past for inspiration. In the past, the best air defence consisted of layers of surface to air missiles (SAMs) and gun systems. These balloon and kite attacks exploit the intellectual and perhaps, even technical space, below the threshold for the employment of SAMs. Kites and balloons are vulnerable to gunfire and integrating rapid firing weapons aimed and operated by humans might provide a solution to this threat. Even this is not without problems as it potentially risks causing inadvertent casualties due to inaccuracy. Regardless, until a solution is found, it is likely insurgents will continue to exploit the air domain not only by developing drones but by evolving from drones to balloons.

Dr Jacob Stoil is an Assistant Professor of Military History at the US Army School of Advanced Military Studies where he serves as the author for the course ‘Anticipating the Future’. He is the Deputy Director of the Second World War Research Group for North America. Stoil holds a PhD from the University of Oxford, and an MA and BA from the Department of War Studies at King’s College London. He has research experience carrying out fieldwork in both Israel and the Horn of Africa. His most recent publications include Command and Irregular Indigenous Combat Forces in the Middle East and Africa’ in the Marine Corps University Journal, and ‘Martial Race and Indigenous Forces’ in Rob Johnson (ed.), The British Indian Army: Virtue and Necessity (2014). Additionally, he has authored analysis of contemporary operations and policy for the Journal of Military Operations, War on the Rocks, and From Balloons to Drones. Most recently he published an article on the spread of vehicle ramming attacks through West Point’s Modern War Institute and has a forthcoming in Le Vingtième Siècle article on indigenous forces in Palestine Mandate.

Header Image: A missile from an Israeli Iron Dome, launched during the Operation Pillar of Defense to intercept a missile coming from the Gaza strip, c. 2012. (Source: Wikimedia)

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[1] Martin van Creveld, The Transformation of War (New York: The Free Press, 1991), p. 176.

2 thoughts on “#Commentary – Going Back to the Future with Insurgent Air Power

  1. Very interesting post, enjoyed it. Nicely highlights that the offense and the defence is always dynamic. While a conflict continues the balance keeps changing as people are endlessly innovative. In this, is an inherent shortcoming of the ‘mowing the grass’ strategy (it’s really a risk management approach). More broadly, ISIS’s drones and now kites suggest we are entering an age of airpower for all – not just only for the big battalions: https://www.lowyinstitute.org/the-interpreter/commercial-drones-privitising-air-power The complexity of 5th generation airpower at the high-end is neatly matched by the simplicity at the lower end. It’s an era where air superiority will now always be potentially contested.

    Like

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