Entente
Not sure what it means but you should probably look it up if you need to.
WAR.
x
I know of no words that start with R for the words World War 2. Now if you wanted my ideas on the matter, I would say Righteousness VS. Evil would be the perfect description of World War 2.
the x-mas truce :)
U-Boat , ULTRA ,U-boat, the name for German submarines during World War 2
Quick (blitzkrieg), Quagmire (Battle of Leningrad)
Facism
jews
wood
Nazism
Yalta
yes war