[1] Over time, many of the elements that once fell under 90th Troop Command have been disbanded to include the second battalions of the 179th, 180th, and 279th Infantry Regiments.

[1] Formed from elements of the disbanded 45th Infantry Division which saw action during World War II and the Korean War, along with the 45th Field Artillery Group (today's 45th Fires Brigade) and 45th Infantry Brigade,[2][3] 90th Troop Command was activated in 1968.

While there is no connection by lineage, 90th Troop Command's designation hearkens back to the days of the 45th Infantry Division's Square organization.

The 90th Troop Command has state missions of pre-mobilization to command, control, and supervise assigned ARNG units employed in support of civil authorities in the protection of life and property and the preservation of peace, order, and public safety under competent orders of state authorities.

Its post-mobilization state mission include assisting in the organization and training of a militia if required, performing command and control functions in support of civil authorities as directed, and preparing to reconstitute the ARANG/ANG when units are released from federal service.