Conclusion
The major combatants – Germany and Japan on the one side and Britain, the United States and the USSR on the other – manufactured huge air forces which engaged in pitched battles both with each other and with the opposing ground forces.
Bombing established itself as a major strategic force, and this was also the first war in which the aircraft carrier played a significant role.
By the beginning of World War II, many towns and cities had built airports, and there were numerous qualified pilots available. The war brought many innovations to aviation, including the first jet aircraft and the first liquid-fueled rockets.
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