No. 315 Squadron RAF

No. 315 (City of Deblin) Polish Fighter Squadron
315 Squadron Logo
Active	21 January 1941 – 14 January 1947
Country	United Kingdom
Allegiance	Polish government in exile
Branch	Royal Air Force
Role	Fighter Squadron
Part of	RAF Fighter Command
Nickname(s)	Dywizjon Myśliwski "Dębliński"
Commanders
Notable commanders	Eugeniusz Horbaczewski
Insignia
Squadron Codes	PK (Jan 1941 – Jan 1946)

No. 315 (City of Deblin) Polish Fighter Squadron (Polish: 315 Dywizjon Myśliwski "Dębliński") was a Polish fighter squadron formed in Great Britain as part of an agreement between the Polish Government in Exile and the United Kingdom in 1941. It was one of several Polish fighter squadrons that fought alongside the Royal Air Force during World War II. It was named after the city of Dęblin, where the main Polish Air Force Academy has been located since 1927.

The squadron was formed at RAF Acklington, England, on 21 January 1941. The squadron, equipped with Hurricanes, was moved in March to RAF Speke, Liverpool, where it made frequent patrols over naval convoys as part of No 9 Group RAF. Before July, when it came under Polish command. No 315 was commanded by Squadron Leader H. D. Cooke.

In July it was moved to RAF Northolt, West London, re-equipped with Spitfires and began to conduct offensive fighter sweeps over occupied Europe. During two operations over France, on 9 August, the squadron achieved its first aircraft claims—two BF 109s destroyed, three probables and three damaged. The squadron returned to Lancashire in April 1942, located at RAF Woodvale, Sefton. The squadron returned to Northolt in September and resumed operations over France. In June 1943, the squadron was withdrawn to Yorkshire, then to County Down, Northern Ireland in July.