query: How many soldiers are in the US Air Force?
passage: United States Air Force
Along with conducting independent air and space operations, the U.S. Air Force provides air support for land and naval forces and aids in the recovery of troops in the field. As of 2017, the service operates more than 5,369 military aircraft, 406 ICBMs and 170 military satellites. It has a $161billion budget and is the second largest service branch, with 318,415 active duty airmen, 140,169 civilian personnel, 69,200 reserve airmen, and 105,700 Air National Guard airmen.
passage: Fourth Air Force
In 2003 Fourth Air Force became an intermediate echelon responsible primarily for all Air Mobility Command (AMC) gained AFRC air refueling units in the United States and AMC gained AFRC strategic airlift units in the western United States. Today the sixty person staff consists of Traditional Reservists, Air Reserve Technicians and civilian employees. They direct the activities and supervise the equipping and training of more than 30,000 Air Force reservists in unit programs located across the continental United States, Alaska, Hawaii and Guam. Reservists from 4 AF units were routinely deployed to Air Expeditionary units in combat areas of Afghanistan and Iraq as part of the "war on terror".