The squadron can be traced to The Eastchurch Squadron, which formed Eastchurch in February 1914. After mobilisation at the start of WWI it was renamed No.3 Wing RNAS, and then later as No.3 (Naval) Squadron. In March 1915, the squadron, under the command of Commander Charles Samson, moved to the island of Tenedos, and began operating 18 aircraft in support of the Gallipoli Campaign. In the first weeks of the campaign they took over 700 photographs of the peninsula, and conducted other ground support tasks including spotting for naval gunfire, and reporting the movements of Ottoman troops. On 21 June 1915, the squadron became No. 3 Wing RNAS and was moved to Imbros. On 19 November, during a raid against a railway junction near the Maritsa River in Bulgaria, Squadron Commander Richard Bell Davies won the Victoria Cross for landing to rescue a pilot who had been shot down, in the face of intense enemy fire. The squadron returned to the UK at the end of 1915, and was disbanded.