What uses do they have for fighter planes?

Question

how does the military use fighter planes?

modern day and during the world wars?

Answer 1

Fighters have several roles:

1. air-to-air (shooting down other planes)

2. air-to-ground (bombing stuff on the ground)

Future/modern uses include

- communication nodes and relays

- sensors

Fighters have been used as bomber escorts and combat air patrol (CAP) to enforce no-fly zones.  It's all about Air Superiority.