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 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.

On 27 May 2009 the Battalion and HHC was once again ordered into federal service in support of Operation Iraqi Freedom VII.

[1] The unit insignia is a Silver color metal and enamel device 1+1⁄8 inches (2.9 cm) in height, consisting of a shield emblazoned with an argent, a cross Gules, overall a saltire Azure, that portion of the saltire upon the cross fimbriated of the field; on a chief of the second, a fleur-de-lis of the first.