User:Hawkeye7/War/Selected anniversaries/February 4
- 1454 - In the Thirteen Years' War, the Secret Council of the Prussian Confederation sends a formal act of disobedience to the Grand Master.
- 1810 - British Navy seizes Guadeloupe.
- 1899 - The Philippine–American War begins.
- 1915 - Germany establishes a submarine blockade around the UK and declares any vessel in it a legitimate target.
- 1932 - World War II: Japan occupies Harbin, China.