HALO jumps are used to enter hostile territory undetected when threats to both Airmen and aircraft are expected.
Flashback - 1983 US Embassy Bombing
The 1983 U.S. embassy bombing was a suicide bombing against the United States embassy in Beirut, Lebanon on April 18, 1983 that killed over 60 people, mostly embassy staff members and United States Marines and sailors. It was the deadliest attack on a U.S. diplomatic mission up to that time, and is seen by some[who?] as marking the beginning of anti-U.S. attacks by Islamist groups. The attack came in the wake of the intervention of a Multinational Force, made up of Western countries, including the US, in the Lebanese Civil War, to try to restore order and central government authority. It also followed the Sabra and Shatila massacre of Palestinian refugees by Lebanese Christian militiamen. Read more at http://en.wikipedia.org/wiki/1983_United_States_Embassy_bombing