- Estonians starts armed resistance against Soviet occupation
- Finland invades Karelia
- Germany, Italy and Romania declare war on the Soviet Union
- Michael Gerasimov opens grave of Tamerlan "Lenk"
- Operation Barbarossa: Nazi Germany invades the Soviet Union during WWII
- The Lithuanian 1941 independence begins.
- Various Communist and Socialist French Resistance movements merge to one group.
Day of the Week: Sunday