Today in World War II History—Nov. 21, 1942 POSTED: Tuesday, November 21, 2017 by Sarah Sundin Patch of the US Ninth Air Force, WWII 75 Years Ago—Nov. 21, 1942: US Ninth Air Force based in Egypt begins attacks on German-occupied port of Tripoli, Libya. Cartoon character Tweety Bird debuts in “Tale of Two Kitties.”