Lineage

• Constituted 6 June 1949 in the Organized Reserve Corps as Headquarters, 301st Military Intelligence Platoon.
• Activated 22 June 1949 at Austin, Texas
  Austin, Texas
  Austin is the capital city of the U.S. state of :Texas and the seat of Travis County. Located in Central Texas on the eastern edge of the American Southwest, it is the fourth-largest city in Texas and the 14th most populous city in the United States. It was the third-fastest-growing large city in...
  
  
• Reorganized and redesignated 1 September 1950 as Headquarters, 301st Military Intelligence Battalion.
• Organized Reserve Corps redesignated 9 July 1952 as the Army Reserve.
• Battalion Inactivated 23 February 1953 at Austin, Texas
  Austin, Texas
  Austin is the capital city of the U.S. state of :Texas and the seat of Travis County. Located in Central Texas on the eastern edge of the American Southwest, it is the fourth-largest city in Texas and the 14th most populous city in the United States. It was the third-fastest-growing large city in...
  
  
• Redesignated 16 September 1988 as Headquarters, Headquarters and Service Company, 301st Military Intelligence Battalion, and activated at Pasadena, Texas
  Pasadena, Texas
  Pasadena is a city in the U.S. state of Texas within the metropolitan area. It is the second-largest city in Harris County, 17th-largest in Texas, and 162nd largest in the United States. The area was founded in 1893 by John H. Burnett of Galveston....
  
  
  (organic elements concurrently constituted and activated)
• Battalion inactivated 15 September 1997 at Pasadena, Texas
  Pasadena, Texas
  Pasadena is a city in the U.S. state of Texas within the metropolitan area. It is the second-largest city in Harris County, 17th-largest in Texas, and 162nd largest in the United States. The area was founded in 1893 by John H. Burnett of Galveston....
  
  
• Activated 16 April 2005 with Headquarters at Phoenix, Arizona