Financial Times: In massive attack on Iran, American pilots are in greater danger A more widespread campaign would pose far greater risks for the United States and its allies. According to analysts, the need to use manned aircraft to attack certain targets increases operational risks for American pilots. According to the report of the US Congressional Research Service, the US military has lost or damaged 81 aircraft since the beginning of the war. This figure includes a number of planes that crashed after being exposed to Iranian fire. Also, 21 American military forces were killed during this war./Jamran.