About the book: 2009 / The submarine of the XXIII series belonged to a subclass of small German submarines and was intended for operations in the North and Baltic seas. The first submarine of this type was the small submarine of the II series. As a result of the sharp strengthening of the anti-submarine forces of England from the end of 1940, the military operations of the Kriegsmarine were transferred to the Atlantic, where medium and large submarines began to operate. The construction of small submarines of the II series and its modifications was stopped, giving preference to larger submarines. The idea of ​​fighting the enemy fleet in coastal British waters with the help of small submarines was returned to again in 1943, but on a fundamentally new technical basis. Then mass production of new generation submarines of the XXIII series was launched. Note. OCR: Last available issue of the series.