During World War I, aircraft played a crucial role in warfare, evolving from simple reconnaissance planes to more advanced fighters and bombers. Early in the war, planes were primarily used for gathering intelligence, but as the conflict progressed, they became essential for air-to-air combat and ground support. Notable aircraft included the Sopwith Camel and the Fokker Dr.I, which were known for their agility and speed. The introduction of synchronized machine guns allowed pilots to fire while flying, significantly changing aerial tactics. By the war's end, aviation had transformed military strategy and laid the groundwork for future air combat.