(From left) Royal air force Air Chief Marshal Sir Stephen Hillier, U.S. Air Force Chief of Staff David Goldfein and French air force Chief of Staff André Lanata pose for a photo during the ATLANTIC TRIDENT 17 World War I Remembrance Day at Joint Base Langley-Eustis, Va., April 21, 2017. The event included a demonstration by the F-22 Raptor Demonstration Team, and the French air force’s Dassault Rafale and aerial demonstration team, Patrouille de France. (U.S. Air Force photo/Airman 1st Class Tristan Biese)