Following the end of the war, Ryan decided to remain in the Marine Corps.
He was subsequently sent to the Marine Corps Schools Quantico, Virginia, where he attended the Junior Course of the Amphibious Warfare School and following graduation, he was appointed an Infantry Instructor there.
Ryan was subsequently transferred to Washington, D.C., and attached to the Division of Plans & Policies at Headquarters Marine Corps in September 1948.
While in that capacity, he was promoted to the rank of lieutenant colonel in April 1950.

During 1951, he was transferred to Venezuela, where he served within U.S. Naval Mission as technical advisor for Venezuelan Marine Corps until June 1953, when he was ordered back to the United States.
Upon his return, Ryan attended the Command and General Staff College at Fort Leavenworth, Kansas.
In July 1954, Ryan was ordered to Korea and assumed command of the 1st Battalion, 7th Marines, which participated in the defense of the Korean Demilitarized Zone as part of the 1st Marine Division, under Major General Robert E. Hogaboom.

Lieutenant Colonel Ryan was ordered stateside in June 1955 and after a brief stint with Headquarters Marine Corps in Washington, D.C., he was sent to Hawaii to be appointed training officer with Fleet Marine Force, Pacific and later served as assistant operations officer with Headquarters and Service Battalion at Camp H. M. Smith.
He was ordered back to Headquarters Marine Corps in 1957 and attached to the Plans & Policies Section, Personnel Division, as assistant chief.
Ryan was promoted to the rank of colonel on August 1, 1958, and after another two years of duties there, he was transferred to Marine Corps Recruit Depot Parris Island, South Carolina, on June 21, 1960.
where he served as commanding officer of the Recruit Training Regiment under Brigadier General George R. E. Shell.

In June 1963, Ryan was assigned to the Senior Course at the National War College.
Following his graduation in July 1964, he was ordered back to Headquarters Marine Corps and appointed assistant director of Joint Planning Group within the Office of Deputy Chief of Staff for Plans and Programs.
While in this capacity, he was promoted to the rank of brigadier general in January 1966 and subsequently assumed duties as assistant chief of staff (G-2) for plans and operations.
Ryan also graduated from George Washington University with a Bachelor of Arts degree in the same year.

Ryan was transferred to Camp Courtney, Japan during the April 1966 and succeeded Brigadier General William A. Stiles as commanding general of the 9th Marine Amphibious Brigade.
He supervised the formation of the staff and subsequent training of the newly activated unit for the Vietnam War.
He was then transferred to Camp Carroll, Vietnam, at the beginning of January 1967, where he assumed the duties of Assistant Division Commander of the 3rd Marine Division under Major General Bruno Hochmuth.
Ryan arrived just for the end of the Operation Prairie and participated in the fighting in the Vietnamese Demilitarized Zone.
He left Vietnam at the beginning of Operation Hickory in May 1967 and returned to the United States.
For his service in this capacity, Ryan was decorated with the Legion of Merit with Combat "V" and also received another Navy Presidential Unit Citation.

He was subsequently assigned to the Marine Corps Base Quantico, Virginia, under the command of Major General James M. Masters and appointed director of the Command and Staff College there.
Ryan proved his qualities as training officer and subsequently was appointed deputy for education and director of Quantico Education Center in June 1968.
While in this capacity, he was promoted to the rank of major general on September 1, 1968.

General Ryan remained in Quantico until May 1969, when he was transferred to Camp Lejeune, North Carolina, in order to assume command of the 2nd Marine Division.
His new command participated only in field exercises in the United States.
He was succeeded by Major General Robert D. Bohn at the beginning of June 1971 and traveled to Norfolk, Virg
Following the end of the war, Ryan decided to remain in the Marine Corps. He was subsequently sent to the Marine Corps Schools Quantico, Virginia, where he attended the Junior Course of the Amphibious Warfare School and following graduation, he was appointed an Infantry Instructor there. Ryan was subsequently transferred to Washington, D.C., and attached to the Division of Plans & Policies at Headquarters Marine Corps in September 1948. While in that capacity, he was promoted to the rank of lieutenant colonel in April 1950.
During 1951, he was transferred to Venezuela, where he served within U.S. Naval Mission as technical advisor for Venezuelan Marine Corps until June 1953, when he was ordered back to the United States. Upon his return, Ryan attended the Command and General Staff College at Fort Leavenworth, Kansas. In July 1954, Ryan was ordered to Korea and assumed command of the 1st Battalion, 7th Marines, which participated in the defense of the Korean Demilitarized Zone as part of the 1st Marine Division, under Major General Robert E. Hogaboom.
Lieutenant Colonel Ryan was ordered stateside in June 1955 and after a brief stint with Headquarters Marine Corps in Washington, D.C., he was sent to Hawaii to be appointed training officer with Fleet Marine Force, Pacific and later served as assistant operations officer with Headquarters and Service Battalion at Camp H. M. Smith. He was ordered back to Headquarters Marine Corps in 1957 and attached to the Plans & Policies Section, Personnel Division, as assistant chief. Ryan was promoted to the rank of colonel on August 1, 1958, and after another two years of duties there, he was transferred to Marine Corps Recruit Depot Parris Island, South Carolina, on June 21, 1960. where he served as commanding officer of the Recruit Training Regiment under Brigadier General George R. E. Shell.
In June 1963, Ryan was assigned to the Senior Course at the National War College. Following his graduation in July 1964, he was ordered back to Headquarters Marine Corps and appointed assistant director of Joint Planning Group within the Office of Deputy Chief of Staff for Plans and Programs. While in this capacity, he was promoted to the rank of brigadier general in January 1966 and subsequently assumed duties as assistant chief of staff (G-2) for plans and operations. Ryan also graduated from George Washington University with a Bachelor of Arts degree in the same year.
Ryan was transferred to Camp Courtney, Japan during the April 1966 and succeeded Brigadier General William A. Stiles as commanding general of the 9th Marine Amphibious Brigade. He supervised the formation of the staff and subsequent training of the newly activated unit for the Vietnam War. He was then transferred to Camp Carroll, Vietnam, at the beginning of January 1967, where he assumed the duties of Assistant Division Commander of the 3rd Marine Division under Major General Bruno Hochmuth. Ryan arrived just for the end of the Operation Prairie and participated in the fighting in the Vietnamese Demilitarized Zone. He left Vietnam at the beginning of Operation Hickory in May 1967 and returned to the United States. For his service in this capacity, Ryan was decorated with the Legion of Merit with Combat "V" and also received another Navy Presidential Unit Citation.
He was subsequently assigned to the Marine Corps Base Quantico, Virginia, under the command of Major General James M. Masters and appointed director of the Command and Staff College there. Ryan proved his qualities as training officer and subsequently was appointed deputy for education and director of Quantico Education Center in June 1968. While in this capacity, he was promoted to the rank of major general on September 1, 1968.
General Ryan remained in Quantico until May 1969, when he was transferred to Camp Lejeune, North Carolina, in order to assume command of the 2nd Marine Division. His new command participated only in field exercises in the United States. He was succeeded by Major General Robert D. Bohn at the beginning of June 1971 and traveled to Norfolk, Virg
Michael P. Ryan (USMC)