World 1 dead, 5 US Marines missing after warplanes collide off Japan December 6, 2018December 6, 2018 Mari Yamaguchi, Associated Press Comments Off on 1 dead, 5 US Marines missing after warplanes collide off Japan The U.S. Marine Corps said that the 2 a.m. crash involved an F/A-18 fighter jet and a KC-130 refueling aircraft during regular training after the planes took off from their base in Iwakuni, near Hiroshima in western Japan.