Question: How may years of career did the United States Marine Corps major general has who participated in the Banana Wars and who's home was Butler House?

Context paragraphs:
Ray L. Smith: Ray L. Smith is a retired United States Marine Corps major general.  Smith is a highly decorated Marine who has commanded infantry units at all levels.  His awards received for service in combat during the Vietnam War include the Navy Cross, two Silver Stars, the Bronze Star, and three Purple Hearts. MajGen Smith retired from the Marine Corps in 1999 after almost 34 years of service.  In 2003, after nearly four years of retirement, Smith went to Iraq with the 1st Marine Division; and penned an eyewitness account of the march from Kuwait to Baghdad — "The March Up: Taking Baghdad with the 1st Marine Division."

Pedro del Valle: Lieutenant General Pedro Augusto del Valle (August 28, 1893 – April 28, 1978) was a United States Marine Corps officer who became the first Hispanic to reach the rank of lieutenant general.  His military career included service in World War I, Haiti and Nicaragua during the Banana Wars of the 1920s, and in World War II, the Battle of Guadalcanal and Battle of Okinawa (Commanding General of the 1st Marine Division).

Hispanics in the United States Marine Corps: Hispanics in the United States Marine Corps, such as Private France Silva who during the Boxer Rebellion became the first Marine of the thirteen Marines of Hispanic descent to be awarded the Medal of Honor, and Private First Class Guy Gabaldon who is credited with capturing over 1,000 enemy soldiers and civilians during World War II, have distinguished themselves in combat.  Hispanics have participated as members of the United States Marine Corps in the Boxer Rebellion, World War I, the American intervention in Latin America also known as the Banana Wars, World War II, the Korean War, the Vietnam War, the Gulf War and most recently in the military campaigns of Afghanistan and Iraq.

Bruno Hochmuth: Bruno Arthur Hochmuth (May 10, 1911 – November 14, 1967) was a United States Marine Corps major general who was killed in South Vietnam during the Vietnam War.  He was the first and only Marine Corps division commander to be killed in any war.  He was also the first American general officer to be killed in Vietnam, although a U.S. Air Force major general had been killed on July 24, 1967 in a B-52 bomber collision over the South China Sea.  Hochmuth, four other Marines, and a South Vietnamese Army aide were killed when a UH-1E Huey helicopter they were riding in from VMO-3 exploded and crashed five miles northwest of Huế.

Joseph D. Stewart: Joseph D. Stewart, also known affectionately by the midshipmen of the United States Merchant Marine Academy as "Joey D," (born July 9, 1942) is a retired United States Marine Corps major general, who after his retirement from the Marine Corps, was appointed as Superintendent of the United States Merchant Marine Academy (USMMA) on August 1, 1998.  He retired from the U.S. Maritime Service with the rank of vice admiral on September 30, 2008.

Leslie M. Palm: Leslie M. Palm (born October 14, 1944) is a retired United States Marine Corps major general who is currently the Publisher and CEO of the Marine Corps Association.  His last active duty position was the Director, Marine Corps Staff, Headquarters Marine Corps, Washington, D.C. (1996–1998).  Palm retired on September 1, 1998.

Butler House (West Chester, Pennsylvania): Butler House is a historic home located in West Chester, Chester County, Pennsylvania.  It was built about 1845, and is a 2 ⁄ -story brick dwelling in the Federal style.  It has a rear ell with porch.  The house has been renovated into apartments.  It was the home of Congressman Thomas S. Butler (1855–1928), father of U.S. Marine Corps Maj. Gen. Smedley Butler (1881–1940).  Maj. Gen. Butler grew up in the house.

James E. Livingston: Major General James Everett Livingston (born January 12, 1940) is a retired United States Marine Corps major general.  He was awarded the United States' highest military decoration—the Medal of Honor—for heroic actions in 1968 during the Vietnam War.  Livingston served on active duty in the Marine Corps over 33 years before retiring on September 1, 1995.  His last assignment was the Commanding General of Marine Forces Reserve in New Orleans, Louisiana.

Smedley Butler: Smedley Darlington Butler (July 30, 1881June 21, 1940) was a United States Marine Corps major general, the highest rank authorized at that time, and at the time of his death the most decorated Marine in U.S. history.  During his 34-year career as a Marine, he participated in military actions in the Philippines, China, in Central America and the Caribbean during the Banana Wars, and France in World War I.  Butler is well known for having later become an outspoken critic of U.S. wars and their consequences, as well as exposing the Business Plot, an alleged plan to overthrow the U.S. government.

John Groff: John Groff (February 14, 1890 – October 2, 1990) was a Brigadier General in the United States Marine Corps whose military career spanned from 1912 to 1946.  Groff was a highly decorated veteran of World War I, earning the Navy Cross, Distinguished Service Cross, Silver Star, and Purple Heart medals.  He also participated in the Banana Wars (in Mexico, the Dominican Republic, Haiti, and Nicaragua), and World War II.  At the time of his death in 1990 at age 100, BG Groff was the oldest surviving general officer in the Marine Corps.

Supporting paragraphs: Butler House (West Chester, Pennsylvania) Smedley Butler
Answer: 34-year