Yes, the service support element; a service battalion is not deployed to Ukraine. There is a task force that's built principally on a unit and a rifle company for the combat training, and a number of other people are doing specialist training—medical and otherwise—and they are supported from a theatre perspective by a service support element that's not a service battalion; it's a small cell that provides all the service support they need in Ukraine.
On November 15th, 2016. See this statement in context.