sentences:  The unit includes Alpha, Bravo, Charlie, Delta and Headquarters (HHC) Companies, all located in Danbury.The battalion has been involved in almost every conflict or major operation since Operation Just Cause in Panama in 1989, most recently serving in the Horn of Africa from 2016 to 2017.The history of the 411th Civil Affairs Battalion begins in 1945 with the establishment of the 399th Civil Affairs Group, which served in the Pacific Theatre.