The 200th Military Police Command is the senior law enforcement unit within the U.S. Army Reserve. The subordinate elements of the 200th MP Command are primarily military police units, but the command also includes criminal investigation detachments, chaplains, historians and public affairs detachments. Units are dispersed across the continental U.S. with major subordinate units located in California, Michigan, New York, Tennessee, Georgia and Indiana. The formation of this command is a departure from the legacy structure of a strategic force in reserve with assigned chains of command based mostly on geography. The purpose of this command is to train, command and deploy units primarily by their functional capabilities.