Royal Air Force Station Hinaidi was a British Royal Air Force station near Baghdad in the Kingdom of Iraq. It was established as the main British base in Iraq after World War I, initially under British Army command until the Royal Air Force took over in 1922. There were extensive barracks, recreational facilities, a large hospital, Air Headquarters, communication facilities, maintenance units, aeroplane squadron hangars, RAF Armoured Car Company lines and a Civil Cantonment. Many British personnel still lie buried in the RAF Cemetery (the Peace Cemetery, now derelict) at Hinaidi.