Coastal Command was founded in 1936, when the RAF was reorganised into Bomber, Fighter, and Coastal Commands, and played a vital role during World War II.
The most important contribution of the Coastal Command was the protection of Allied convoys from attacks by the German U-boats and aerial strikes from the Luftwaffe.
With bases in the United Kingdom, Gibraltar, Iceland, the Soviet Union, North and West Africa, Coastal Command defended supply lines in the Battle of the Atlantic, as well as in the Mediterranean, African and Middle East theatres.
Coastal Command Strike wings attacked German shipping, carrying war materials from Italy to North Africa and Scandinavia to Germany, in the Mediterranean, North Sea, Arctic and the Baltic.
Sources and Further Reading
RAF Coastal Command – Wikipedia