Events 601 - 636 of 636
- Dec 15 USS Swordfish becomes 1st US sub to sink a Japanese ship
- Dec 15 The American Federation of Labor adopts a no-strike policy in war industries.
- Dec 19 US Office of Censorship created to control info pertaining to WW II
- Dec 20 Free France under adm Muselier occupies St-Pierre et Miquelon
- Dec 20 Japanese troops land on Mindanao, Philippines
- Dec 20 World War II: First battle of the American Volunteer Group, better known as the "Flying Tigers" in Kunming, China.
- Dec 21 Chicago Bears Ray McLean makes last NFL drop kick for an extra point
Dec 21 National Football League Championship, Wrigley Field, Chicago: Chicago Bears beat New York Giants, 37-9; first team in NFL championship game era (since 1933) to win consecutive titles; Bears 5th title overall
- Dec 25 Japan announces surrender of British-Canadian garrison at Hong Kong
- Dec 25 Japanese aircraft carriers Akagi/Kagu back in Kure, Japan
- Dec 26 Winston Churchill becomes first British Prime Minister to address a joint meeting of the US Congress, warning that Axis would "stop at nothing"
- Dec 27 Japan bombs Manila even though it was declared an "open city"