US Air Force F-15 arrive in Bulgaria to send a message to Putin. The United States Air Force (USAF) is the aerial warfare service branch of the United States . You will find on this channel news about military aircraft such as bombers and fighter aircraft and general aviation news, military vehicles such as tanks, latest . ADANA, TURKEY - DECEMBER 15: American soldiers stand in front of a war craft belonging to the United States Air Forces, are seen at Incirlik Air Base in . Ukraine Crisis Locals get angry with pro-Russia separatists May 2014 Breaking .
