Question: Army Network Enterprise Technology Command has headquarters at the Fort that was established on what date?

Context paragraphs:
Second United States Army: Second Army was most recently located at Fort Belvoir, Virginia as a Direct Reporting Unit to Headquarters U.S. Army, Chief Information Officer (CIO)/G-6.  Under the CIO/G-6, Second Army served as the single point of contact for Army missions and functions related to reporting on, assessing, planning, coordinating, integrating, synchronizing, directing and conducting Army network operations.  This mission ended after a 2017 reorganization, when the Second Army was inactivated.

9th Army Signal Command (United States): The 9th Army Signal Command is the operational executive agent for Army-wide network operations and security.  It is the single point of contact for Army network development and protection, providing C4 information management of common-user services in support of the combatant commanders and Army service component commanders.  It is the numbered command for the Network Enterprise Technology Command.

Western Defense Command: Western Defense Command (WDC) was established on 17 March 1941 as the command formation of the U.S. Army responsible for coordinating the defense of the Pacific Coast region of the United States.  A second major responsibility was the training of soldiers prior to their deployment overseas.  The first Commanding General of WDC was Lieutenant General John L. DeWitt, who continued on in command of the Fourth U.S. Army.  WDC headquarters were co-located at the existing Fourth Army headquarters at the Presidio of San Francisco.  WDC's operational region covered the states of Washington, Oregon, California, Idaho, Montana, Nevada, Utah and Arizona.  However, until 11 December 1941 the command was little more than a planning agency.  On that date the Army coast defense, antiaircraft, and fighter assets on the west coast and in Alaska were placed under the command, which until 20 March 1942 was known as the Western Theater of Operations, then reverted to the previous name.  From 11 December 1941 until 1 November 1943 Alaska Defense Command was controlled through WDC.

Lightspeed Venture Partners: Lightspeed Venture Partners is an American venture capital firm focusing on early stage investments in the enterprise technology and consumer space.  To date, the firm has backed more than 300 companies, including Snapchat (Snap Inc.), DoubleClick (acquired by Google after IPO), AppDynamics (acquired by Cisco for $3.7B), Brocade (BRCD), Nicira (acquired by VMware), Playdom (acquired, DIS), Pliant Technology (acquired, SanDisk), XtremeIO (acquired, EMC), Blue Nile (NILE), Fusion-io (FIO), Phone.com (OPWV), Informatica (INFA), Fastfox and Solazyme (SZYM).  The fund has 24 early stage enterprise investments that have gone public, the most of any fund in the world.

7th Signal Command (United States): The United States Army's 7th Signal Command (Theater) is responsible for the integration, security and defense of Army networks in the Continental United States.  The 7th Signal Command is designed to extend Army network capabilities to Army forces in support of US based expeditionary operations.  The command is one of five theater Signal Commands worldwide, and is a subordinate element of NETCOM/9th SC (Army).  It was activated at Fort Gordon in July 2008.

Rhett A. Hernandez: Lieutenant General Rhett A. Hernandez is a retired officer in the United States Army and the former commander of the United States Army Cyber Command which is the Army’s service component to U.S. Cyber Command.  Hernandez, as a major general, assumed the position upon its activation (which included the command receiving and perpetuating the lineage and honors of the former Second United States Army) on October 10, 2010, with its headquarters at Fort Belvoir Virginia.  He received a promotion to lieutenant general on March 25, 2011.  As head of US Army Cyber Command, Hernandez was responsible for planning, coordinating, and integrating the network operations and defense of all US Army networks.  Hernandez also was tasked with conducting cyberspace operations in support of Army operations through his command of approximately 21,000 soldiers and civilians.  Hernandez oversaw a command that brought an unprecedented unity of effort and synchronization of all Army forces operating within the cyber domain.  Under Hernandez, the command concentrated its efforts on operationalizing cyberspace and improving Army capabilities in the cyberspace domain.  As a first step, the command established the Army Cyber Operations and Integration Center collocating intelligence, operations, and signal staffs, together with a critical targeting function, and bringing a new synergy to Army cyberspace operations.  To improve the Army’s cyber capabilities the command fielded a World Class Cyber Opposing Force at the National Training Center; developed new doctrinal concepts for Land-Cyber operations; and identified the Army’s capability requirements needed to fully operationalize the cyberspace domain and grow the Army’s cyber force.  He currently serves on the Board of Advisors of the Military Cyber Professionals Association (MCPA).

Army Network Enterprise Technology Command: United States Army Network Enterprise Technology Command (NETCOM) was realigned in 2014 from a Direct Reporting Unit (DRU) to the Army’s Chief Information Ofﬁcer (CIO/G-6) to a subordinate command under Second Army.  NETCOM's mission is to operate and defend the computer networks of the United States Army.  The numerical command for NETCOM was 9th Army Signal Command, though this distinction was removed on 1 October 2011.  Its heritage can be traced back to the creation of the 9th Service Company in 1918.  The command headquarters is at Fort Huachuca, Arizona.  Major General John B. Morrison, Jr assumed Command in March 2014.

Pakistan Army Corps of Signals: The Pakistan Army Corps of Signals (Urdu: ﺁرمى سيگنل كور; "Army Signal Core", is an active combatant military administrative staff corps and a major intelligence and science and technology command of Pakistan Army.  The corps core objectives includes the research and development, tests, and manage the military communications and information systems support for the command and control of combined arms forces.

Fort Huachuca: Fort Huachuca is a United States Army installation, established 3 March 1877 as Camp Huachuca.  The garrison is now under the command of the United States Army Installation Management Command.  It is located in Cochise County, in southeast Arizona, about 15 mi north of the border with Mexico and at the northern end of the Huachuca Mountains, next to the town of Sierra Vista.  From 1913 to 1933 the fort was the base for the "Buffalo Soldiers" of the 10th Cavalry Regiment.  During the buildup of World War II, the fort had quarters for more than 25,000 male soldiers and hundreds of WACs.  In the 2010 census, Fort Huachuca had a population of about 6,500 active duty soldiers, 7,400 military family members and 5,000 civilian employees.  Fort Huachuca has over 18,000 people on post during the peak working hours of 0700 and 1600 on week days, making it one of the busiest Army installations.

Michelle Fraley: Michelle Fraley ("née" Hernández) is a retired military officer and is the current Superintendent of the Puerto Rico Police.  Fraley is also the first Puerto Rican woman to graduate from West Point Military Academy and the first woman to hold the aforementioned post of superintendent.  She is also the former chief of staff of the Army Network Enterprise Technology Command.  Academically, Fraley holds a Master of Business Administration (MBA) from Nova Southeastern University, a Master of Arts (M.A.) in International Relations and Affairs from Troy University, and a Ph.D. in organizational leadership from the University of Phoenix.

Supporting paragraphs: Army Network Enterprise Technology Command Fort Huachuca
Answer: 3 March 1877