There were two Sergeants' messes at RAF Waddington during the war which helped to keep the two factions separate .....the original Sgts' Mess was in the building that now houses the police headquarters as you enter on the left past the guardroom...the large influx of aircrew sergeants was housed in a larger block known as the Aircrew Sgts' Mess which eventually became the Sgts' Mess after the war (the non-aircrew mess becoming the Corporals' Club). The Aircrew Sgts' Mess was replaced by a new mess building a few years ago - the Aircrew Mess is now known as Sentry Block.