The 45th Infantry Brigade Combat Team, part of the Oklahoma National Guard and based in Norman, Okla., is at the National Training Center, Fort Irwin for Decisive Rotation 21-08.5.
The 45th is facing off against OPFOR from the 11th Armored Cavalry Regiment-Blackhorse under the watchful eye of the NTC Operations Group within the 1,200 square miles of the NTC.