No. 461 Squadron was a Royal Australian Air Force maritime patrol squadron during World War II which operated under Royal Air Force control flying in Europe and over the Atlantic. The squadron was formed in 1942 and was disbanded in mid-1945, just after the end of the war in Europe. Personnel were drawn from many countries of the British Empire, although the majority were Australians. Throughout the war, the squadron was credited with destroying a total of six German U-boats, and operated mainly in the Bay of Biscay and Atlantic.

Royal Air Force Mount Batten, or more simply RAF Mount Batten, is a former Royal Air Force station and flying boat base at Mount Batten, a peninsula in Plymouth Sound, Devon, England, UK. Originally a seaplane station opened in 1917 as a Royal Navy Air Service Station Cattewater it became RAF Cattewater in 1918 and in 1928 was renamed RAF Mount Batten. The base is named after Captain Batten, a Civil War commander who defended this area at the time, with the Mountbatten family motto In Honour Bound taken as the station's motto.