At the outbreak of
World War II, Wright was the captain of the U.S. cruiser . Wright was promoted to
rear admiral in May 1942 and commanded warship forces under
William Halsey during the
Guadalcanal campaign. As commander of
Task Force 67, Wright led his force of five cruisers and four destroyers against a
Japanese "
Tokyo Express" force of eight destroyers on the night of November 30, 1942. In the resulting
Battle of Tassafaronga, Wright's force sank one Japanese destroyer, but one of Wright's cruisers, the , was sunk and three other cruisers were so badly damaged that they were out of action for nine months. The battle was one of the worst defeats that the U.S. Navy suffered in World War II. Wright was awarded the
Navy Cross for his performance in the battle, but was also reassigned to shore duty at the U.S. Navy's staff in
Washington, D.C. Wright later commanded the U.S. Navy's Cruiser Division 4 in the central Pacific in 1944 before returning to shore duty as a member of the staff and later commander of the
12th Naval District in
San Francisco. On July 17, 1944, the
Port Chicago disaster—two explosions in which 302 men were killed and two ships obliterated, thought to be caused by mishandling of ammunition by untrained shiploaders—occurred under his command. Afterward Wright ordered the General Courts Martial of 50 African-American men found guilty of mutiny after expressing fear and refusing to return to work loading ammunition. ==Post war==