Resistance during the Holocaust took many forms across occupied Europe. The largest resistance movements were the Yugoslav and Soviet partisans, who used guerrilla warfare tactics against Nazi forces. Resistance included sabotage of factories, strikes, armed uprisings like the Warsaw Ghetto Uprising of 1943, and hiding Jews and escaped prisoners of war. Groups resisting the Nazis included partisans in countries like Poland, France, and Belarus, as well as German anti-Nazi groups. While dangerous, resistance was an important struggle that helped defeat Nazi Germany.