During 1941 Todt and his organization were further charged with a project even larger, the construction of the Atlantic Wall, to be built on the coasts of occupied France, the Netherlands and Belgium. Included with this project were the fortification of the British Channel Islands, which were occupied by Nazi Germany from 30 June 1940 to 9 May 1945. The only camps on British soil operated by the OT were in the Channel Islands; two of these OT camps were given to the management of the SS from March 1943 converting them into the Alderney concentration camps.[citation needed]