During which conflict were rockets first attached to aircraft?

Rockets were first attached to aircraft during World War I, primarily as a means to enhance combat capabilities. The incorporation of rockets into aerial warfare was a significant development, as it expanded the range and types of ordnance that could be delivered from an aircraft.

During World War I, both the Allies and Central Powers experimented with various methods of improving the effectiveness of their air forces, including the use of rockets. The British and the Germans both conducted trials with rockets attached to aircraft, aiming to improve their ability to engage ground targets and enemy formations. This innovative approach laid the groundwork for future advancements in aerial ordnance, establishing a precedent for the integrated use of rockets in subsequent conflicts.

The other conflicts listed saw further advancements in aviation technology and the incorporation of missiles and rockets into aerial platforms, but the initial application occurred during World War I, marking a critical moment in military aviation history.