UAV

As the tide of automated warfare is rising, optimists are already attempting to ride the wave.  I do so in Proceedings, suggesting possible paths of development for autonomous platforms and with Ben Kohlman at the Disruptive Thinkers blog imagine future scenarios in which automated platforms might be used. Admittedly, we often ignore the many ways our concepts can wipe out: particularly signals hijacking and spoofing of navigational systems. As illustrated by eavesdropping on Predator communications  and the recent forced crash of a drone in Texas , determined enemies can steal information or cause mayhem if they break the code on combat robot (ComBot) operations. Ideas for securing these advanced automated armadas can be found in some of the oldest methods in the book.

Paleo-Wireless: Communicating in the Swarm
In 2002, LtGen Paul Van Riper became famous for sinking the American fleet in a day during the Millennium Challenge exercise; he did so by veiling his intentions in a variety of wireless communications. We assume wireless to mean the transfer of data through the air via radio signals, but lights, hand signals, motorcycle couriers, and the like are all equally wireless.  These paleo-wireless technologies are just what ComBots need for signal security.

ComBot vulnerabilities to wireless hacks are of particular concern for planners. Data connections to operators or potential connections between ComBots serve as a way for enemies to detect, destroy, or even hijack our assets.  While autonomy is the first step in solving the vulnerability of operator connections, ComBots in the future will work as communicating teams. Fewer opportunities will be provided for subversion by cutting the long link back to the operator  while maintaining the versatility of a small internally-communicating team. However, data communication between ComBots would still be vulnerable. Therefore, ComBots must learn from LtGen Van Riper and move to the wireless communications of the past. Just as ships at sea communicate by flags and lights when running silent or soldiers might whisper or motion to one another before breaching a doorway, ComBots can communicate via light, movement, or sound.

Unlike a tired Junior Officer of the Deck with a NATO code-book propped open, computers can almost instantly process simple data. If given the capability, a series of blinking lights, sounds, or even informative light data-transmissions  could allow ComBots of the future to coordinate their actions in the battlefield without significantly revealing their position. ComBots would be able to detect and recognize the originator of signals, duly ignoring signals not coming from the ComBot group. With the speed and variation of their communications, compressed as allowed by their processing power, ComBots can move through the streets and skies with little more disruption than a cricket, lightening bug, or light breeze. High- and low-pitch sounds and infrared light would allow for communications undetectable to the average soldier.

LtGen Van Riper melded a deadly combo of new weaponry with old communications to build a force capable of, with the greatest surprise, wiping out a force armed with the greatest technology in every category. Utility, not technology, is what gives us the edge in the battlefield. Sometimes it is a combination of the old and new that allows for the potency. Perhaps, one day, ComBots will be set loose into the battlefield where they will operate more as a pack driven by sight and sound than a military formation managed over a data link.

GPS: How About a Map?

The Texas incident has broken open the doors on a previously low-key vulnerability for ComBot systems, navigation. While speculation is rife as to how the CIA lost a drone in Iran, it is quite clear that the researchers in Texas were able to spoof a ComBot into destroying itself. Spoofing of externally-based navigational systems is a potential way to turn aerial ComBots in particular into weapons against us.  It is often forgotten that systems that are “autonomous” still rely on outside guidance references that can be manipulated. While civilian GPS is less secure than military-grade GPS, the potential for GPS spoofing to lay-low a combat force is a chilling one. However, the solution can be found by augmenting legacy techniques with modern processing.

Terrain Contour Matching (TERCOM) and Digital Scene Mapping Correlation (DSMAC) are non-GPS methods of navigation that specifically use internal recognition of local terrain and urban landmarks to maneuver Tomahawk missiles. This is another way of, “looking around and reading a map.” Processing power advances since the system was first introduced during the Cold War mean greater amounts of recognition data can be processed in shorter amounts of time by smaller platforms. ComBots deployed to specific areas can upload local data to allow localization based on terrain from high altitude or Google-maps-style scene matching from rooftops or even street-by-street. With adaptive software, ComBots could even “guess” their location if the battlefield changes due to combat destruction, noting changes in their environment as damage is done.  While GPS can be spoofed, unless the enemy has been watching too much Blazing Saddles, DSMAC and TERCOM will be nigh impregnable navigational systems.

This defense for ComBot operations can also act as a navigational redoubt for a fighting force. The downing of GPS satellites or the spoofing of signals effects everyone using electronic navigation systems. Aerial ComBots outfitted with TERCOM and DSMAC could act as a secondary GPS system in an area with a GPS outage. If signals are jammed or satellites taken out, warfighters or other navigationally lesser-developed ComBots could triangulate their positions based on the system of ComBots with locations determined by TERCOM and DSMAC. By adding these recognition systems to autonomous drones, commanders will defend ComBots from hijackers and combatants from the choking fog of war.

Riding the Wave:

The key to the safe and effective use of ComBots is to avoid the extremes of optimists and luddites. Optimists will look far into the realm of capability before necessarily researching vulnerabilities, abandoning the old for every shiny new development. Luddites will make certification and security processes long and complicated, cowering from the strange light new technology brings; ComBots would run on Windows 95 and take 30 minutes to log on to themselves. It is best to advance fearlessly, but take our hard-learned lessons with us. Non-digital communications, aka speech and signals, and localized navigational systems, aka carrying maps, offer ComBot developers a shield against interlocutors.  Our new dogs will be best defended by some of the oldest tricks. 

One of the more pernicious accusations made by opponents of U.S. targeted killing operations is that CIA personnel involved in drone warfare are violating the law. This argument, endorsed by many in the legal academy and human rights community, is meant to delegitimize the CIA counterterrorism offensive by equating its operators with the transnational terrorists they are targeting.

However, such criminations are based on an overly rigid and inaccurate reading of the laws of war.

As a preliminary matter, the stated U.S. position is that the fight against al Qaeda constitutes an armed conflict sanctioned domestically by the post- 9/11 Authorization for the Use of Military Force, and internationally by the inherent right of self-defense acknowledged in the United Nations Charter.

The law of armed conflict, which governs the conduct of hostilities during wartime, does not prohibit the use of civilian personnel in combat. Rather, Additional Protocol I to the Geneva Conventions outlaws “perfidy,” or the deliberate manipulation of the rules of war to put law-abiding fighters at risk. Such conduct, which our enemies engage in constantly, includes “the feigning of civilian, non-combatant status” in order to mount ambushes.

Although Protocol I applies only under specified circumstances and the U.S. has not ratified it, we nonetheless acknowledge the prohibition on perfidy as binding customary law. Thus, it would be unlawful for the CIA to paint a drone with the insignia of a commercial airline carrier, and then use such camouflage to launch sneak attacks on civilian airports.

Since the use of CIA drone operators is not illegal per se, the next issue is the status of its workforce under the law of armed conflict. This discussion is largely academic, because it considers whether CIA pilots would merit status as prisoners of war (POWs) if captured. Of course, no one imagines that al Qaeda would apply a legal analysis to this question, which at least partly explains why the physical remove of drone technology is so valuable in a fight against lawless enemies.

As a general rule, soldiers in war are entitled to “belligerent immunity,” which means that because they are authorized to directly participate in hostilities, they cannot be held liable for the warlike acts they commit. As the famed Nuremberg prosecutor Telford Taylor wrote, “War consists largely of acts that would be criminal if performed in time of peace,” but “the state of war lays a blanket of immunity over its warriors.” As such, enemy soldiers captured on the battlefield are held as POWs rather than tried as murderers.

The third Geneva Convention lays out a four-part test that armed groups must meet in order to qualify for POW status. Although these criteria are technically applicable in limited scenarios, they have gained larger acceptance over time as the indicia of lawful belligerency in general. The threshold factors include: (1) command responsibility, (2) distinctive insignia, (3) exposed weaponry, and (4) compliance with the laws of war.

Critics of U.S. targeting operations often contend that because CIA drone pilots are not sitting at their consoles in flight suits bearing Air Force rank insignia, they are entitled to neither belligerent immunity nor POW status, and could be tried for murder under the domestic laws of any foreign authority that apprehended them. While there are no doubt certain countries that would relish just such an opportunity, this is not a legally defensible assertion.

First, the legal requirement for fighters to display a distinguishing marker emphatically does not mean that even military service members must be in uniform 24 hours a day. In fact, because soldiers are valid military targets at all times during war, it is anticipated that if attacked while sleeping, they will immediately fight back in their underwear rather than wait to don their battle dress. Moreover, many an epic sea battle has been fought by sailors in shirtsleeves.

Second, it is important not to lose sight of the underlying principle animating the formalized requirements. Here, the basic rule is “distinction,” which requires belligerents to distinguish themselves from nearby civilians so as not to bring them into the enemy’s line of fire. This standard, although routinely and purposefully violated by our adversaries’ use of human shields, has no bearing on the attire of a drone operator at Langley.

While there is certainly room for debate over the proper role of intelligence agents in lethal operations, this is a matter of policy, not law. Branding CIA operators as scofflaws simply for doing their jobs is neither productive nor correct.