GLACIER NATIONAL PARK, Mont. (July 29, 2011) U.S. Marine pilots Capt. John Hecker, left, and Capt. Ben Blanton perform a… https://www.rawpixel.com/image/8742432/photo-image-public-domain-personFree Image from public domain licenseFreedom in the SkyThe Navy Blue Angels fly in formation during the 2014 Marine Corps Air Station Miramar Air Show, Oct. 3.… https://www.rawpixel.com/image/3582545/free-photo-image-2014-miramar-air-show-aircraft-airlinerFree Image from public domain license