News STB holds change of responsibility ceremony July 23, 2015 Photos by Ronnie Schelby Lt. Col. Caprissa Brown-Slade, commander of the Special Troops Battalion, 21st Theater Sustainment Command, passes the guidon to Command Sgt. Maj. Anthony Williams during a change of responsibility ceremony July 14 on Panzer Kaserne. Williams is replacing Command Sgt. Maj. Brian Mainor as the command sergeant major of the STB. The 21st Theater Sustainment Command Color Guard and members of the Special Troops Battalion participate in a change of responsibility ceremony July 14 on Panzer Kaserne. Tags: 21st Theater Sustainment Command × change of responsibility × Special Troops Battalion « Previous × Next » Share Tweet