The battalion's first ancestor was established 26 June 1672 in the Connecticut Militia as the Regiment of
Fairfield County. In the
Revolutionary War a
Militia of the 1st Battalion, 192d Field Artillery fought in the
Battle of Saratoga (1777) and
New York (1776–77). The unit was re-designated as Company I and called to
active duty to play its part in the
Civil War efforts in September 1862. The unit fought in the
Battle of Bull Run,
Gettysburg,
Georgia (1862),
South Carolina (1862) and
Louisiana (1863),
Cold Harbor, and
Petersburg. During
World War I, personnel from the unit took part in Oise-Aisne,
Meuse-Argonne, and
Champagne (1918) Campaigns. The unit was re-designated in 1921 as the 192d Field Artillery Regiment and reassigned to the
43rd Infantry Division. The 192nd Field Artillery Regiment was mustered into federal service and assigned as the 68th Field Artillery Brigade, 43rd Infantry Division. It was re-designated as the 192nd Field Artillery Battalion on 10 February 1942. During
World War II the unit deployed to
New Zealand in October 1942 and fought in the
Pacific Theater of Operations in the
Guadalcanal, New Solomon Islands,
New Guinea, and the
Philippines Campaign. The 2/192nd Field Artillery Battalion was mobilized in April 2002 in support of the
Winter Olympics in
Salt Lake City,
Utah. In September 2003 the Battalion was mobilized in support of
Operation Noble Eagle III and was re-designated as the 192nd Chemical Battalion. The 192nd Chemical Battalion officially was re-designated into the 192nd Military Police Battalion 1 September 2008. On 27 May 2009 the Battalion and HHC was once again ordered into federal service in support of
Operation Iraqi Freedom VII. Headquarters and Headquarters Company deployed to Camp Cropper, Iraq, where it ran Detainee Operations. The unit redeployed on 10 May 2010. 150 soldiers assigned to the Headquarters and Headquarters Company participated in a deployment ceremony at
Bradley Air National Guard Base,
East Granby,
Connecticut in support of the
2026 Iran war (codenamed Operation Epic Fury) on 28 April 2026. ==Unit insignia and coat of arms==