Attack! Battle of New Britain (1944)

Attack! Battle of New Britain is a 1944 WWII documentary, produced by Frank Capra, U.S. Office of War Information and U.S. War Department, and released by RKO Pictures.

It's very apparent that Warner Bros. Pictures provided the sound design/sound effects as most sfx in this documentary are WB sounds.

Sound Effects Used
FAMOUS STUDIOS CARTOON FALL SOUND (Heard twice in its entirety as bombs drop, following LOONEY TUNES CARTOON FALL SOUND)

LOONEY TUNES CARTOON FALL SOUND (One of the takes played in reverse twice as bombs begin to drop)

Sound Ideas, BIRDS, JUNGLE - AFTERNOON JUNGLE BIRDS CALLING, ANIMAL

Sound Ideas, RICOCHET - CARTOON RICCO 03

Sound Ideas, RICOCHET - CARTOON RICCO 04