Anti aircraft detachments parading before Adolf Hitler and his Yugoslavian guest. An Anti aircraft detachment parading before Adolf Hitler and Prince Regent Paul of Yugoslavia in Berlin, June 2, 1939. (AP Photo)
Anti aircraft detachments parading before Adolf Hitler and his Yugoslavian guest. An Anti aircraft detachment parading before Adolf Hitler and Prince Regent Paul of Yugoslavia in Berlin, June 2, 1939. (AP Photo)