![British Defences | History of the Battle of Britain | Exhibitions & Displays | Research | RAF Museum British Defences | History of the Battle of Britain | Exhibitions & Displays | Research | RAF Museum](https://www.rafmuseum.org.uk/images/online_exhibitions/pc94-152-50LG.jpg)
British Defences | History of the Battle of Britain | Exhibitions & Displays | Research | RAF Museum
![World War II History on Twitter: "QF 3.7-inch anti-aircraft guns on the south coast of Great Britain in August, 1944. #History #WWII https://t.co/HuU6txuCj2" / Twitter World War II History on Twitter: "QF 3.7-inch anti-aircraft guns on the south coast of Great Britain in August, 1944. #History #WWII https://t.co/HuU6txuCj2" / Twitter](https://pbs.twimg.com/media/EXLXUbjWAAAYPaS.jpg)
World War II History on Twitter: "QF 3.7-inch anti-aircraft guns on the south coast of Great Britain in August, 1944. #History #WWII https://t.co/HuU6txuCj2" / Twitter
![File:3-inch gun crew of 303rd Battery, 99th Anti-Aircraft Regiment, Royal Artillery, in action at Hayes Common in Kent, May 1940. H1388.jpg - Wikimedia Commons File:3-inch gun crew of 303rd Battery, 99th Anti-Aircraft Regiment, Royal Artillery, in action at Hayes Common in Kent, May 1940. H1388.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/a/a6/3-inch_gun_crew_of_303rd_Battery%2C_99th_Anti-Aircraft_Regiment%2C_Royal_Artillery%2C_in_action_at_Hayes_Common_in_Kent%2C_May_1940._H1388.jpg)
File:3-inch gun crew of 303rd Battery, 99th Anti-Aircraft Regiment, Royal Artillery, in action at Hayes Common in Kent, May 1940. H1388.jpg - Wikimedia Commons
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