佐世保鎮守府
On 11 November 1942, Nagumo was reassigned to Japan, where he was given command of the Sasebo Naval District. He transferred to the Kure Naval District on 21 June 1943. From October 1943 to February 1944, Nagumo was again commander-in-chief of First Fleet, which was by that time largely involved in only training duties.