The Joint Base Cape Cod is a joint base created by the Commonwealth of Massachusetts and the United States War Department in 1935.
 Governor James Curley signed the state bill to allocate and purchase land for a military facility, and establishing a formal commission to manage this new state military property and personnel.
 After 22000 acre of land was secured in Cape Cod, the Massachusetts National Guard began erecting tents and a basic training program in the following year.
 Formerly the Massachusetts Military Reservation, it was renamed in 2013 to Joint Base Cape Cod.
The 102d Security Forces Squadron (102 SFS) is a unit of the 102d Intelligence Wing, Massachusetts Air National Guard, at Otis Air National Guard Base, Joint Base Cape Cod, Massachusetts.
 If activated to federal service, the squadron is gained by the United States Air Force.
The United States Air Force's 101st Intelligence Squadron (101 IS), Massachusetts Air National Guard, is an intelligence unit assigned to the 102nd Intelligence Wing and located at Otis Air National Guard Base, Massachusetts.
 From its creation in 1921 to its mission change in 2008, the 101st was the mainstay of aerospace defence for the Northeastern United States.
 The 101st was deployed during the Berlin Crisis to France and was also deployed to Panama during Operation Coronet Nighthawk.
 It also participated in Operation Northern Watch.
 During the September 11 attacks, the 101st was the first Air Force unit to send aircraft toward New York City, but they arrived too late to help stop the attacks.
Twenty-Fifth Air Force (25 AF), also known as Air Force Intelligence is a numbered air force (NAF) within the United States Air Force (USAF), and serves as the Air Force's premier military intelligence organization.
 25 AF was established on 29 September 2014 by redesignating the Air Force Intelligence, Surveillance and Reconnaissance Agency (a field operating agency) under Headquarters, United States Air Force, to a numbered air force aligned under Air Combat Command.
 USAF also realigned the 9th Reconnaissance Wing and the 55th Wing under the new NAF.
 It is headquartered at Lackland Air Force Base, Texas.
Maj. Gen. George G. Finch became the Senior Leader of the US Air National Guard; (Chief of the Air Division National Guard Bureau) (1948-1950) In June 1953 it was reported that Gen. Mark W. Clark would retire and be replaced by Maj. Gen George G. Finch on the UN command delegation to the Korean armistice talks George G. Finch, born April 11, 1902 in Dade City, Florida, is considered one of the pioneers in United States aviation history.
 He began his military career during World War 1, enlisting in the Aviation Section of the Army's Signal Corps in 1918.
 He remained in the Reserve Corps after the war, and in 1926, became Commander, 27th Pursuit Squadron, 1st Pursuit Group.
 In 1940, Georgia Governor Ed Rivers commissioned him to form the first flying unit of the Georgia Air National Guard.
 The unit was mobilized into the U.S. Army in September, 1941, with Major Finch as commander.
 After World War II, he was a leading critic of efforts to eliminate the air arm of the National Guard during peacetime.
 General Finch gained the respect and admiration of Air National Guardsmen throughout the nation with his steadfast support and successful efforts to preserve the Air Guard.
 He became the first Chief of the Air Force Division of the National Guard Bureau in 1948.
 Under his leadership, the Air National Guard built to combat readiness and was among the first components called into service after the outbreak of the Korean War.
 As a result of General Finch's vision and perseverance, 45,000 highly trained officers and airmen of 22 wings and 65 squadrons gave the Air Force the strength it needed in the early, critical phases of the Communist drive down the Korean peninsula.General Finch served as the senior Air Force member of the United Nations negotiating team at the peace talks at Panmunjom, Korea, and received the Legion of Merit for outstanding service in 1955; General Finch assumed command of Fourteenth Air Force, Robins AFB, Georgia, becoming the nation's first Air National Guardsman to head a numbered air force.
 General Finch had a career of "firsts" including the US Army's first night landing with a single, five-million-candlepower floodlight in 1927.
 He also established and endowed the General John P. McConnell Award at the United States Air Force Academy.
 Considered by many as the father of the strong, independent Air National Guard existing today, General Finch retired in 1957.
 No man has had greater impact on the Air Force Reserve and National Guard than has General George G. Finch.A graduate of the University of Georgia and a member of the Georgia Bar, General Finch was enshrined in the Georgia Aviation Hall of Fame May 18, 1996.
Otis Air National Guard Base (IATA: FMH, ICAO: KFMH, FAA LID: FMH) is an Air National Guard installation located within Joint Base Cape Cod, a military training facility, located on the western portion of Cape Cod, in western Barnstable County, Massachusetts, United States.
 It was previously known as Otis Air Force Base prior to its transfer from the active duty Air Force to the Air National Guard.
 In the local community, it is more commonly known as Otis Air Base or simply Otis.
 It is also frequently called by its old name, Otis Air Force Base.
 It was named in honor of pilot and Boston surgeon, Lt. Frank "Jesse" Otis.
The United States Air Force's 234th Intelligence Squadron is an Air National Guard intelligence unit located at Beale Air Force Base, California.
Coast Guard Air Station Cape Cod is a United States Coast Guard air station located on Joint Base Cape Cod formerly known as Otis Air National Guard Base in Sandwich, Massachusetts.
 It operates from New York City to the Canada–US border.
 It was founded in 1970 as a replacement to Coast Guard Air Station Salem.
Camp Edwards is a United States military training installation which is located in western Barnstable County, Massachusetts.
 It forms the largest part of Joint Base Cape Cod, which also includes Otis Air National Guard Base and Coast Guard Air Station Cape Cod.
 It was named after Major General Clarence Edwards.
 It is home to the 3rd Battalion, 126th Aviation.
The United States Air Force's 102d Intelligence Wing (102 IW), of the Massachusetts Air National Guard, is a military intelligence unit located at Otis Air National Guard Base, Massachusetts.
 Its primary subordinate operational unit is the 101st Intelligence Squadron.
 According to the Air Force, the history of the 102d begins with the 318th Fighter Group, which was active during World War II.
 After the war, the 318th was inactivated, and eventually the 102d Fighter Wing was formed, which had a direct lineage link.
 In 1946, the 102d was activated at Logan International Airport where it stayed until 1968, when it moved to Otis Air Force Base.
 Beginning in 1946, the wing began regular patrols of the Northeastern United States which took place in conjunction with Air Force active duty units.
 In 1968, the 102d was moved to Otis, where it continued its regular patrols until 1973.

Question: At which Air National Guard installation within Joint Base Cape Cod is this United States Air Force intelligence unit located, which participated in Operation Northern Watch, and was dispatched during the September 11 attacks in an attempt to stop the attacks?
Answer: Otis Air National Guard Base