Lets not forget that the Poles put up one hell of a fight, despite being outnumbered, outgunned, nowhere to retreat and thousands of miles from help. Those who went on to serve in the Battle of Britain were known for their courage, ferocity and determination, amply demonstrated in about seven days time at the Battle of Wizna.
http://en.wikipedia.org/wiki/Battle_of_Wizna
(Song by Swedish power-metal group Sabaton about Wizna)