Question: Gregg A. Sturdevant is a retired United States Marine Corps major general, from February 2012 to February 2013, he commanded the Marines' aviation wing at which 1,600 acre Afghan Armed Forces base in Helmand Province, Afghanistan?

Context paragraphs:
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.

Camp Leatherneck: Camp Leatherneck is a 1,600 acre Afghan Armed Forces base in Helmand Province, Afghanistan.  The site is mostly in Washir District and is conjoined with Camp Bastion, the main British military base in Afghanistan.

Afghan Air Force: The Afghan Air Force (AAF; Pashto: دافغانستان هوائی ځواک ; Dari: قوای هوائی افغانستان), formerly the "Afghan National Army Air Corps", is the aerial warfare branch of the Afghan Armed Forces.  It is divided into three wings, with the 1st Wing at Kabul, the 2nd Wing at Kandahar and the 3rd Wing south at Shindand in western Afghanistan.  Lt. Gen. Mohammad Dawran serves as Chief of Staff of the Afghan Air Force and Major General Abdul Wahab Wardak is the Afghan Air Force Commander.  The command center of the Afghan Air Force is located at Kabul International Airport and the Shindand Air Base in Herat Province serves as the main training area.

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."

3rd Battalion, 3rd Marines: 3rd Battalion, 3rd Marines, abbreviated as (3/3), is an infantry battalion of the United States Marine Corps, based out of Kāne'ohe, Hawai'i.  Known as either "Trinity" or "America's Battalion", the unit falls under the command of the 3rd Marine Regiment of the 3rd Marine Division.  The unit consists of approximately 1124 U.S. Marines and United States Navy sailors.  Like most battalions of the U.S. Marine Corps, 3rd Battalion, 3rd Marines is made up of three rifle companies (India, Kilo, and Lima), a Headquarters and Services (H&S) company, and a weapons company.  The battalion was originally formed at Marine Corps Base Camp Lejeune, North Carolina in 1942 and saw action on both Bougainville and Guam during World War II, where it was awarded the first of its Presidential Unit Citations for "gallantry, determination, and esprit de corps in accomplishing its mission under extremely difficult and hazardous conditions"; and the first of its Navy Unit Commendations for "outstanding service".  Marines in the battalion were also awarded one Medal of Honor and seven Navy Crosses during the war.  Following World War II, 3rd Battalion was disbanded until 1951, when it was reformed in California.  The battalion was alerted for possible deployment during the 1956 Suez War and the 1958 intervention in Lebanon.  In 1965, the Marines of 3rd Battalion were deployed to the Vietnam War and participated in Operation Starlite, the first major Marine engagement of that conflict.  The battalion continued to see major action through Vietnam and was rotated back to the United States in 1969.  Famous alumni from its time in Vietnam include Corporal Robert Emmett O'Malley, the first Marine in Vietnam to be awarded the Medal of Honor, Oliver North, and John Ripley.  Around the end of the Vietnam War, the Battalion was deactivated for a second time in 1974.

Joseph Dunford: Joseph Francis Dunford Jr. (born December 8, 1955) is a United States Marine Corps General.  He is the 19th Chairman of the Joint Chiefs of Staff.  He was also the 36th Commandant of the Marine Corps.  Dunford is the first Marine Corps officer to serve in four different four-star positions; the others include commander of the International Security Assistance Force and United States Forces-Afghanistan from February 2013 until August 2014, and as the 32nd Assistant Commandant of the Marine Corps from October 23, 2010, to December 15, 2012.  He has also commanded several units, including the 5th Marine Regiment during the 2003 invasion of Iraq.  As Chairman, Dunford is the highest-ranking military officer in the United States Armed Forces.

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.

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.

Gregg A. Sturdevant: Gregg A. Sturdevant is a retired United States Marine Corps major general.  At the time of his retirement, he was the director of strategic planning and policy for U.S. Pacific Command.  From February 2012 to February 2013, he commanded the Marines' aviation wing at Camp Leatherneck/Camp Bastion in Afghanistan.

Regional Command Southwest: Regional Command Southwest, abbreviated RC(SW), was an international military formation, of roughly division size, which was one of the components of the International Security Assistance Force in Afghanistan.  It was stood up on 3 July 2010 largely from an area previously in Regional Command South.  It was headquartered at Camp Leatherneck with an area of responsibility of largely Helmand and Nimruz provinces.  The United States Marine Corps provides the majority of the force headquarters.  It consisted of Task Force Helmand of the British Armed Forces (including Denmark and Estonia) and Task Force Leatherneck of the United States Marine Corps.  Provincial Reconstruction Team Helmand was also located in Regional Command Southwest.

Supporting paragraphs: Gregg A. Sturdevant Camp Leatherneck
Answer: Camp Leatherneck