What was the air combat strategy for WWII? What makes flying these planes risky, and what do pilots suffer from?

WW II pilots.

Explanation:

The aircraft role in World War II was reconnaissance, air superiority, tactical ground support, and strategic bombing. Aircraft included trainer planes, fighter planes, and long-range bombers. They played a key role in bombing cities and destroying enemies in large extend. WW II became a struggle for control of the air.  These aircraft were risky as they destroyed by enemies on the ground.