A U.S. Air Force B-52 Stratofortress strategic bomber from Minot Air Force Base, N.D., and a French air force Rafale fighter jet fly over France, April 20, 2016. The B-52 also conducted a flight over the Lafayette Escadrille Memorial in Marnes-la-Coquette, France, during a ceremony honoring the 268 Americans who joined the French air force before the U.S. officially entered World War I. (Courtesy photo)