By 1945, the editors at Newsweek had become fans of young Ozzie Sweet, who since 1942—stationed at Camp Callan near San Diego—had been serving in the U.S. Army. As part of his communications duties for the Army, he was doing a lot of photography, and in the process submitted a number of war-related photographs to Newsweek. The magazine responded by giving him some of his earliest cover credits (he went by "O.C. Sweet" back then).
When World War II ended, Newsweek called on Ozzie again, using this stark black-and-white photograph. The defeat of Nazi Germany was cause for worldwide celebration, and Newsweek—obviously moved by Ozzie's "surrender" portrait—ran it with no words, no cover lines.
By the way, that's not actually a German soldier on Newsweek's May 7, 1945 cover. Ozzie used a friend in Florida who wore an authentic German uniform he had acquired. Not surprisingly, the magazine hired Ozzie as its full-time chief cover photographer as soon as he got his honorable discharge.