Polish pilots were among the most experienced in the battle; most had hundreds of hours of pre-war flying experience and had fought in the Invasion of Poland or the battle of France. The Polish pilots had been well trained in formation flying and had learned from combat experience to fire from close range. By comparison, one Polish pilot referred to the close formation flying and set-piece attacks practiced in the RAF as "simply suicidal". The 147 Polish pilots claimed 201 aircraft shot down. No. 303 Squadron claimed the highest number of kills, 126, of any Hurricane squadron engaged in the battle of Britain.