Robert Bostwick Carney Jr., 63, a retired Marine Corps brigadier general who was a veteran of World War II and Vietnam, died of arteriosclerosis March 9 at his home in Arlington.

Gen. Carney received his Marine commission in 1942. During World War II, he served in the Pacific, where he took part in the fight for Bougainville. He commanded a company of the Fourth Marine Division on Iwo Jima, where he led an assault on Mount Suribachi. He received the Bronze Star and Purple Heart for his actions at Iwo Jima.

After the war, he held several assignments in Japan, Taiwan and this country. In the late 1950s, he was a special assistant to the Marine Corps commandant. From 1964 to 1968, he was commander of the Marine Barracks at 8th and I streets SE.

In 1968, he was ordered to South Vietnam as assistant commander of the Third Marine Division, and a year later became commanding general of a Marine amphibious unit. He was stationed at Marine Corps headquarters in Washington when he retired from active duty in June 1972.

Gen. Carney was a native of Washington and a graduate of the old Western High School. He was a graduate of Dartmouth College and the Armed Forces Staff College.

Survivors include his wife, the former Natalie Sutherland, of Arlington; a son, Robert B. III, of Fort Lauderdale, Fla.; a daughter, Parelee Budd, of Atlanta; a sister, Betty Taussig, of Annapolis; his mother, Grace Carney, and father, retired Adm. Robert B. Carney Sr., a former chief of naval operations, both of Washington, and three grandchildren.