A resistance movement is a group dedicated to fighting an invader in an occupied country. Tactics of resistance movements range from passive resistance and industrial sabotage to what would today be regarded as terrorism.
In World War II, many countries had resistance movements dedicated to fighting the German invaders. There was also an anti-Nazi German resistance movement within Germany itself. Although Britain was not invaded in World War II, preparations were made for a British resistance movement in the event of a German invasion.
- Underground Railroad, Pre-American Civil War American slave escape network
- Armia Krajowa, Polish underground army in World War II
- Żydowska Organizacja Bojowa (ŻOB), Jewish resistance movement that led the Warsaw Ghetto Uprising in 1943.
- The French resistance movement in World War II, including the Maquis.
- The White Rose, a German resistance movement in World War II
- The Red Orchestra, a German resistance movement, which included the only American executed by the Nazis for belonging to an anti-Nazi organization.
- Norwegian resistance movement in World War II
- Danish resistance movement in World War II
- Italian resistance movement in World War II
- The Mujahadeen in Soviet occupied Afghanistan