The Bombing of Warsaw in World War II refers to the aerial bombing campaign of Warsaw by the German Luftwaffe during the siege of Warsaw in the invasion of Poland in 1939. It also may refer to German bombing raids during the Warsaw Uprising in 1944. During the course of the war approximately 85% of the city was destroyed due to German mass bombings, heavy artillery fire and a planned demolition campaign.
The Warsaw Uprising was a major World War II operation, in the summer of 1944, by the Polish underground resistance, led by the Home Army, to liberate Warsaw from German occupation. The uprising was timed to coincide with the retreat of the German forces from Poland ahead of the Soviet advance.
Although the exact number of casualties is unknown, it is estimated that about 16,000 members of the Polish resistance were killed and about 6,000 badly wounded. In addition, between 150,000 and 200,000 Polish civilians died, mostly from mass executions. Jews being harboured by Poles were exposed by German house-to-house clearances and mass evictions of entire neighbourhoods. German casualties totalled over 2,000 to 17,000 soldiers killed and missing. During the urban combat, approximately 25% of Warsaw’s buildings were destroyed. Following the surrender of Polish forces, German troops systematically levelled another 35% of the city block by block. Together with earlier damage suffered in the 1939 invasion of Poland and the Warsaw Ghetto Uprising in 1943, over 85% of the city was destroyed by January 1945 when the course of the events in the Eastern Front forced the Germans to abandon the city.