111 Squadron of the Royal Flying Corps during the reorganisation of the Egyptian Expeditionary Force after General Edmund Allenby took command during the Sinai and Palestine Campaign.

[4] Its mission was to restrict enemy reconnaissance flights and challenge the German fighter presence over Suez.

1 Squadron, Australian Flying Corps in February 1918, becoming completely equipped with single seat fighters.

[4] In September 1918, Treble One participated in the Battle of Megiddo, tasked with attacking the German airfield at Jenin.

111 Squadron had claimed 44 enemy aircraft destroyed and a further 13 forced down for the loss of two pilots killed in combat, one prisoner and three wounded.

[7] The squadron had produced four aces: Austin Lloyd Fleming, future Air Marshal Peter Roy Maxwell Drummond, Charles Davidson, and Arthur Peck.

[8][better source needed] Treble One moved to Egypt after the War ended and then to Ramla in Palestine on 6 February 1919, re-equipping with the Bristol Fighter.

[4] Treble One moved even further north to RAF Drem, East Lothian, in December 1939 in order to provide cover for the Royal Navy at Scapa Flow.

111 (Fighter) Squadron played a role in the Battle of Britain while based at RAF Croydon, pioneering dangerous head-on attacks against the Luftwaffe bomber streams.

However, after suffering heavy losses in August 1940, the unit was rotated north in September to RAF Drem.

In November, Treble One again relocated to RAF Gibraltar for support of Operation Torch, the invasion of North Africa.

Under the command of Squadron Leader George Hill it moved to Malta in June 1943 to support Operation Husky, the invasion of Sicily.

The squadron was not reactivated until 2 December 1953 when it received Gloster Meteor F.8s at RAF North Weald.

They achieved international acclaim with their 'Black Arrows' aerobatic display team using the Hawker Hunter, under the command of Squadron Leader Roger Topp.

In 1965, under Squadron Leader George Black (later AVM) and fully equipped with Lightning F3's, it was chosen to provide a combined display with the Red Arrows for the Paris Air Show in June of that year.

111 (Fighter) Squadron was involved in Operation Telic where it formed the major part of the Tornado F3 Wing at Prince Sultan Air Base in Saudi Arabia.