 During World War I, AG „Weser” launched a total of 96 U-boats.Because of intensive construction of warships, A.G. „Weser” was often the target of Allied air-raids during the Bombing of Bremen in World War II, mainly in 1944 and 1945.But despite many buildings, workshops, magazines, slipways and docks as well as ships and U-boats under construction were damaged, in most cases production could be continued within some weeks.