Hi I need help on a few questions relating to WW2 and the different arms of the RN of that period. I know RN is Royal Navy, RNR is Royal Navy Reserve and RNVR is Royal Navy Volunteers Reserve. What was the difference between all 3 arms during the war years? I am investigating into my father’s WW2 progress through the RN from 1940 to 1946 when he was invalided out. He volunteered in 1940 and chose the Navy to go into (like his father did in WW1) and ended up in the RNPS Was it because he volunteered they took him in the RN and not RNR or RNVR? Was it if you were conscripted you went into one of the other arms? Help on understanding this ww2 process will help me no end.