He left his New York high school 71 years ago to join the U.S. Army Air Corps, which became the U.S. Air Force.

Last year, the Florida Legislature made it possible for people to get their diplomas if they left school to join the military and were honorably discharged.

"Wonderful. It's like a dream world. I can't believe I'm up on the stage," Koolik said.

Koolik's daughter found out about the program and encouraged her dad to pursue it.

She presented him with his diploma.

The 70th anniversary of D-Day, the World War II invasion of Normandy, is on Friday.