It was at Algiers in North Africa in 1943. Bob Hope was there with his USO tour to entertain the troops and to meet General Eisenhower. Ike promised Hope a night of peace and quiet but unfortunately, the Germans chose that night to fly bombers over the town.
As the bombs fell, the general and the star evacuated to the wine cellar. Ike later send Hope a note regretting that Hope had to resign himself to a night in the cellar instead of a bed. Bob Hope replied that it wasn't the cellar that bothered him; it was the stuff flying overhead.