In 1956, Mathews again deployed with the 7th Fleet. Assigned to that fleet's amphibious force 12 January–4 October, she participated in squadron and fleet exercises from Japan to the Philippines, joining in the Black Ship Festival at Shimoda on 17 to 21 May.
In 1956, Mathews was assigned to the 7th Fleet's amphibious force from January 12 to October 4. She participated in exercises with squadrons and fleets, traveling from Japan to the Philippines, and joined the Black Ship Festival at Shimoda between May 17 and 21.