What was the main aircraft type that marked the transition in military aviation during the interwar years?

The transition in military aviation during the interwar years was significantly marked by the development and deployment of modern fighting units, particularly the introduction of monoplane designs and the evolution of strategic roles for aircraft. This period saw advancements in technology that allowed planes to become more effective in combat scenarios. They transitioned from being primarily used for reconnaissance or support roles to playing critical parts in offensive operations, including ground attack and air superiority tasks.

The first-generation monoplane fighters, bombers, and ground attack aircraft came to the forefront during this time, reflecting the military’s recognition of the importance of air power in modern warfare. This transition laid the groundwork for the tactics and strategies that would be employed in World War II and fundamentally changed the nature of military conflict.

In contrast, focusing solely on biplanes would not encompass the entire scope of innovation during the interwar years; while they were used, they were gradually being replaced by more advanced aircraft. The roles of commercial passenger planes and gyrocopters did not align with the major military advancements being recognized at that time. Thus, acknowledging modern fighting units captures the essence of how military aviation evolved through those pivotal years.