121st Signal Battalion (United States) - Lineage

Lineage

• Constituted 1916-07-01 in the Regular Army as a Signal Corps battalion.
• Organized 1916-09-16 at Fort Sam Houston, Texas, as the 2nd Field Battalion, Signal Corps, to consist of the following pre-existing companies:

1. Company A organized 1898-07-27 as Company A, Signal Corps;
   Redesignated 1910-04-05 as Field Company A, Signal Corps;
   Redesignated 1915-10-19 as Radio Company A, Signal Corps;
   Redesignated 1916-11-11 as Company A, 2nd Field Battalion, Signal Corps.
2. Company B organized 1898-07-27 as Company D, Signal Corps;
   Redesignated 1910-04-05 as Field Company D, Signal Corps;
   Redesignated 1916-11-11 as Company B, 2nd Field Battalion, Signal Corps

• Company C, 2nd Field Battalion, Signal Corps, organized 1917-05-11.
• Battalion assigned 1917-05-24 to the 1st Expeditionary Division.
• Reorganized and redesignated 1917-08-03 as the 2nd Field Signal Battalion
• Reorganized and redesignated 1921-02-09 as the 1st Signal Company.
• Reorganized and redesignated 1957-02-15 as Headquarters and Headquarters Company, 121st Signal Battalion (organic elements constituted 1957-02-08 and activated 1957-02-15 at Fort Riley, Kansas)
• Inactivated 1995-12-15 at Fort Riley, Kansas
• Activated 1996-02-06 in Germany.
• Company B inactivated 2005-11-09 at Larson Barracks in Kitzingen.
• Company A inactivated 2006-03-31 at Conn Barracks in Schweinfurt.
• Company C and HHC inactivated 2006-04-10 at Larson Barracks.