From 22–27 May, the Atlanta served with the Fast Carrier Task Force operating south of Japan near Okinawa while the carriers' aircraft struck targets in the Ryukyu Islands and on Kyūshū to support forces fighting for Okinawa. Her task group broke up on 13 June, and Atlanta entered San Pedro Bay, Leyte, Philippines, on 14 June. Following two weeks of upkeep, she sailed on 1 July with Task Group 38.1 and once again protected the fast carriers launching strikes against targets in the Japanese home islands. During these operations, the cruiser took part in several shore bombardment missions against Honshū and Hokkaidō.
operating off the coast of Honshū when the
Japanese surrendered on 15 August 1945. On
16 September, she entered
Tokyo Bay and remained there through 29
September. Leonard was honorably
discharged from the ship and the US Navy at
Tokyo Bay on 19 September 1945.
So Leonard was in his nation's service, one day out of Pearl Harbor when World War II started, and in Japanese waters when the war ended.