The Influnce of the Battle of Britain was that the RAF had to fight the Luftwaffe and win or else the Germans would invade Britain ("Battle of Britain ''). The RAF was outnumbered by little to alot ("Battle of Britain ''). The RAF had to fight the Luftwaffe and at the peak of this battle, the RAF was making 3 planes for every 1 plane that was shot down ("Battle of Britain''). The Luftwaffe had sent the most planes in one day and the RAF had only 12 planes to protect the conutry ("Battle of Britain ''). This day is called Britain Day ("Battle of Britain'').