In June 1950, Ross was ordered to the Far Eastern Area and appointed commanding officer of Marine Barracks at Naval Base Yokosuka. He served in this capacity during Korean War and was ordered back to the United States in October 1952. He then served as chief of staff, Marine Corps Recruit Depot San Diego under Major General John T. Walker until 1954, when he was appointed Area Staff Representative, Operations Coordinating Board. Ross was appointed to his final assignment in 1955 when he was assigned to the Staff of the Net Evaluation Subcommittee, National Security Council. Richard P. Ross Jr. retired from active service on June 28, 1957, after 30 years of active service and was advanced to the rank of brigadier general on the retired list for having been specially commended in combat. He then settled in Laguna Hills, California, with his wife, Catherine P. Ross (1909–1993) and died there on October 6, 1990. He was buried at Arlington National Cemetery, Virginia, with full military honors. Here is the ribbon bar of Brigadier General Richard P. Ross Jr.: