It retained the airships Beta and Gamma, adding Delta and Eta, as well as kites and a few spherical balloons.

Apart from a few weeks as a supernumerary in August and September 1914, Longcroft continued as the squadron commander until January 1915.

[14] On 19 August, Salmond was replaced as commander of the squadron by Major Philip Joubert de la Ferté, later an Air Chief Marshal.

They include Robert A. Birkbeck, Quintin Brand (later Air Vice Marshal), Douglas Cameron, William Charles Campbell, Percy Jack Clayson, Edwin Cole, Philip Fullard (later Air Commodore), Eustace Grenfell, Louis Fleeming Jenkin, Tom Hazell, Harold Albert Kullberg, Charles Lavers, Francis Magoun, Guy Borthwick Moore, Gordon Olley, Harry Rigby, William Wendell Rogers and William Rooper.

On the next day it reformed at Risalpur in the North West Frontier of India (now part of Pakistan), flying the Sopwith Snipe and from January 1920.

It moved to Hinaidi near Baghdad in Iraq in May 1921, to carry out policing duties, retaining its Snipes,[22] although it also received one Bristol Jupiter engined Nieuport Nighthawk for evaluation.

[23] It remained in Iraq, carrying out strafing and bombing against hostile tribal forces until November 1926 when it was disbanded.

[24] In early 1927 it was reformed at RAF Tangmere, Sussex as a Home Defence Fighter Squadron, equipped with the Armstrong Whitworth Siskin.

[25] On the outbreak of the Second World War in September 1939 the squadron was deployed to France as part of the RAF Advanced Air Striking Force.

In February, it began "Rhubarb" (low-level sweeps over occupied territory) and night flying missions, and was re-equipped with the Hurricane IIA.

[29] The squadron carried out night intruder patrols until July 1942, when it was re-equipped with the Hawker Typhoon fighter-bomber and relocated to RAF Acklington, Northumberland where it reverted to daytime operations.

[28] The squadron was equipped with the Supermarine Spitfire Mk.IX in April 1944, and in June began anti-V1 patrols, shooting down 39 flying bombs.

The squadron dropped 250 lb bombs on to 'Key Points' (KPs), directed by radar to counter the adverse weather conditions.

He eventually served as commander of the Squadron at RAF Station Tangmere, an unusual posting for a non-commonwealth foreigner in peacetime.

[30] The Squadron was then equipped with the Hawker Hunter F.5, which were flown from RAF Akrotiri, Cyprus during the 1956 Suez Crisis.

[31] It then moved to RAF Waterbeach from where, flying the Hunter FGA.9, it operated in the ground attack role as part of No.

[35] The squadron was the subject of an episode of the BBC documentary series Defence of the Realm before and during its participation in the Bosnian War as part of NATO's Operation Deny Flight.

[36] During the Kosovo war the Squadron flew sorties as part of NATO's Operation Allied Force.

[40] One outcome of the Strategic Defence and Security Review by the coalition government in 2010 was the decision to take the RAF's Harriers out of service almost immediately.

[46] No.1 Squadron's badge features a winged numeral "1" and was approved by King Edward VIII in July 1936.

It is the authorised version of an earlier badge used during the First World War which had a "1" on the national roundel marking with a laurel wreath and two Royal Flying Corps wing.

1 Squadron, including date of appointment, sourced from Halley,[13] Shaw[51][52] and Franks & O'Connor.