About a fifth of Battle of Britain pilots came from outside the UK - from a very wide range of countries. Worth noting the most successful squadron was Polish a

About a fifth of Battle of Britain pilots came from outside the UK - from a very wide range of countries. Worth noting the most successful squadron was Polish and the most successful individual pilot, Josef František, was Czech: https://www.rafmuseum.org.uk/research/online-exhibitions/history-of-the-battle-of-britain/battle-of-the-nations.aspx https://www.rafmuseum.org.uk/research/online-exhibitions/his... https://en.wikipedia.org/wiki/Josef_Franti%C5%A1ek https://en.wikipedia.org/wiki/Josef_Franti%C5%A1ek