Why were civilians heavily affected by bombing during World War II?

During World War II, civilians were heavily affected by bombing because they became explicit targets of strategic bombing campaigns. This approach was a facet of total war, where nations mobilized their entire societal resources for the conflict.1

The primary reasons for targeting civilian populations included:

• Demoralization: Military leaders believed that destroying homes and killing civilians would break the morale of the population, forcing governments to surrender.21
• Industrial Disruption: Bombing campaigns aimed to destroy a nation’s infrastructure—such as factories, railways, and refineries—that was essential for producing and supplying war materials.1
• Overwhelming Services: Attacks on population centers were intended to swamp local authorities and services, such as transportation and emergency response, with refugees and destruction.3

While some military officials defended these actions as necessary, the high civilian death toll—such as the tens of thousands killed in the bombing of Dresden or the 43,000 civilians killed during the Blitz—remains a subject of significant moral and historical controversy, with some critics characterizing these raids as war crimes.23