"...renegade pilots on his own side"

[Trumper]

Originally Posted by rollnloop

renegade=defeated polish,french,czechs still fighting alongside the british. They were considered as renegades in their own army and condemned to death (at least the former french air force pilots).

I don't think they would've been called that from over here in the UK.Maybe free as in Free French.Technically it's not wrong in meaning but in the use of the term possibly not right.
http://www.thefreedictionary.com/renegade
"renegade [ˈrɛnɪˌgeɪd]
n
1.
a. a person who deserts his cause or faith for another; apostate; traitor
b. (as modifier) a renegade priest
2. any outlaw or rebel
If the countries i e Poland etc were invaded and forced to side with the Axis then i don't think they were renegades as they were still fighting for their home country against the invaders.