Once Before I Die (1965)

WW-II 1941: Shortly after Pearl Harbor the Japanese attack the Philippine islands. A group of Polo playing soldiers and their families are surprised far off in the countryside. Lt. Bailey leads them back to Manila, but the streets are jammed with fugitives. On the trip Bailey's fiancée Alex talks with a 19 years old shy soldier. He tells her of his fears to die and admits that he's never been with a woman. Only once before he dies, he'd like to have sex.