strikes may have violated international humanitarian law. The Intercept reported, "Between January 2012 and February 2013, U.S. special operations airstrikes [in northeastern Afghanistan] killed more than 200 people. Of those, only 35 were the intended targets." Countermeasures Early forms One of the earliest forms of defense against assassins was employing bodyguards, who act as a shield for the potential target; keep a lookout for potential attackers, sometimes in advance, such as on a parade route; and putting themselves in harm's way, both by simple presence, showing that physical force is available to protect the target, and by shielding the target if any attack occurs. To neutralize an attacker, bodyguards are typically armed as much as legal and practical concerns permit. Notable examples of bodyguards include the Roman Praetorian Guard or the Ottoman Janissaries, but in both cases, the protectors sometimes became assassins themselves, exploiting their power to make the head of state a virtual hostage or killing the very leaders whom they were supposed to protect. The loyalty of individual bodyguards is an important question as well, especially for leaders who oversee states with strong ethnic or religious divisions. Failure to realize such divided loyalties allowed the assassination of Indian Prime Minister Indira Gandhi, who was assassinated by two Sikh bodyguards in 1984. The bodyguard function was often executed by the leader's most loyal warriors, and it was extremely effective throughout most of early human history, which led assassins to attempt stealthy means, such as poison, whose risk was reduced by having another person taste the leader's food first. Modern strategies With the advent of gunpowder, ranged assassination via bombs or firearms became possible. One of the first reactions was simply to increase the guard, creating what at times might seem a small army trailing every leader. Another was to begin clearing large areas whenever a leader was present to the point that entire sections of a city might be shut down. As the 20th century dawned, the prevalence and capability of assassins grew quickly, as did measures to protect against them. For the first time, armored cars or limousines were put into service for safer transport, with modern versions virtually invulnerable to small arms fire, smaller bombs and mines. Bulletproof vests also began to be used, but since they were of limited utility, restricting movement and leaving the head unprotected, they tended to be worn only during high-profile public