The 73rd Light Anti-Aircraft Regiment, was an air defence unit of the British Army's Royal Artillery during World War II. It served during the London Blitz, landed on D-Day, seeing action throughout the campaign in North West Europe and defending the cities of Belgium against V-1 flying bombs.

39th Anti-Aircraft Brigade was an air defence formation of Britain's Territorial Army (TA) during the Second World War. It was responsible under Anti-Aircraft Command for protecting industry along the Humber Estuary and airfields in Lincolnshire during The Blitz. Later it defended the coast of East Anglia against Luftwaffe 'hit-and-run' attacks. It was later converted to a field force formation, covered the embarkation ports for Operation Overlord and defended London against V-1 flying bombs. It served in the campaign in North West Europe, defending Antwerp against V-1s and supervising the clean-up of the notorious Bergen-Belsen concentration camp.