A first cousin I never knew, an 18-year-old Marine enlistee, was KIA on Okinawa in April, 1945. His remains were returned to the U.S. and buried in a National Cemetery in March, 1949. It took almost four years, but they brought him home to rest.
My father was in the 8th Air Force during WWII, got out for a year or two at war’s end then reenlisted. He was immediately sent to South Korea by troop ship.
One of my mementos of him (he died in 1975) is a small note book he kept during the voyage. An entry mentions the ship calling at Okinawa to load U.S. war dead and how depressing it was to see GI coffins being craned aboard for their final voyage home...thousonds of them.
Had an Uncle (never knew him, I wasn’t born yet) was killed on Iwo Jima, they buried him in the Punch Bowl cemetery in Hawaii.