No. 304 (Land of Silesia) Polish Bomber Squadron () was a Polish World War II bomber unit. It fought alongside the Royal Air Force under their operational Command and operated from airfields in the United Kingdom, serving from April 1941 as a bomber unit in RAF Bomber Command, from May 1942 as an anti-submarine unit in RAF Coastal Command and from June 1945 as a transport unit in RAF Transport Command. History Bomber Command 304 Squadron was created on 23 August 1940 at RAF Bramcote, and from 1 December 1940 it operated from RAF Syerston, as a part of No. 1 Bomber Group (along with No. 305 Squadron created at the same time). It was declared ready for operations with Vickers Wellington Mk I medium bombers on 24 April 1941. The personnel included 24 entirely Polish air crews (initially three-men, later six-men) and approximately 180 ground crew. On the night of 24/25 April 1941 two crews flew the squadron's first combat mission against fuel tanks in Rotterdam. In the following months the squadron joined the night bombing campaign over Germany and France. First losses occurred on 6 May and 8 May 1941 (in the second instance, a crew of the British advisor w/cdr W. Graham). On 20 July 1941 the squadron moved to RAF Lindholme base. In 1941 the squadron completed 214 missions lasting 1,202 hours, losing 47 killed airmen. In first four months of 1942 the intensity of operations increased. Due to large losses suffered in early 1942, including six crews lost in April, and difficulties in recruiting replacements, it was decided to transfer the squadron to RAF Coastal Command. While in Bomber Command the squadron completed 488 missions in 2,481 hours, dropping some 800 tons of bombs, losing 102 airmen KIA or MIA and 35 POW. Coastal Command On 10 May 1942 the squadron was transferred to RAF Coastal Command along with the Wellington aircraft. From 14 May 1942 it based at RAF Tiree, from 13 June 1942 at RAF Dale. Apart from patrolling duties over the Bay of Biscay, seven crews took part in a thousand-aircraft raid at Bremen on 25/26 June 1942 (losing one crew). Several times Polish crews attacked U-boats and fought with German long-range aircraft. On 13 August 1942 the Squadron was credited with sinking a U-boat, though this was not confirmed post-war. On 2 September 1942 one Wellington inflicted damage to Italian Reginaldo