The 1st Ubootgeschwader (1st UG) was set up on 1 October 1961 in Kiel. It was initially under the control of the Amphibische Gruppe [de], before it was subordinated to the newly established Ubootflottille [de] on 1 November.[1] The 1st UG received its first submarine, the newly-commissioned Type 201 submarine U-1, on 21 March 1962. The U-1 was the first submarine constructed in post-war Germany.