The 545th Brigade Engineer Battalion is a combat engineer battalion in the Oklahoma Army National Guard, part of the 45th Infantry Brigade Combat Team. It was reorganized from the Special Troops Battalion, 45th Infantry Brigade Combat Team and is headquartered in Norman, Oklahoma. It is the newest battalion in the brigade. Commanders and command sergeants major Commanders LTC Van Kinchen 2007-2008 LTC John Landreth 2008-2009 LTC Michael Kinnison 2009-2011 LTC Thomas Mancino 2011–2013 LTC Douglas Merritt 2013-2014 LTC Hiram Tabler 2014-2015 LTC Cory Newcomb 2015–2018 LTC Elmer Bruner 2018-2019 LTC Michael Vanoni 2019-present Command sergeants major CSM Joe Stover 2007-2011 CSM Gordon Carlin 2011–2012 CSM Bryon Fry 2012-2013 CSM Brian Miller 2013-2015 CSM Robert Apala 2015-2015 CSM Douglas Kimberlin 2015–2018 CSM Scott Catlett 2018-2021 CSM Shannon Carter 2021-present Former subordinate units Headquarters and Headquarters Company, Special Troops Battalion, 45th IBCT at Norman, OK Company A (Combat Engineer), Special Troops Battalion, 45th IBCT at Broken Arrow, OK Company B (Military Intelligence), Special Troops Battalion, 45th IBCT at Norman, OK Company C (Signal), Special Troops Battalion, 45th IBCT (Signal) at Norman, OK Deployments Global War on Terror Operation Noble Eagle Pine Bluff Arsenal (245 ENG) Operation Iraqi Freedom Iraq Surge (245 ENG, 245 MI) Operation Enduring Freedom Afghanistan Consolidation III Afghanistan Transition I History and lineage The Special Troops Battalion, 45th IBCT was formed from new and existing units of the 45th Infantry Brigade Combat Team and received federal recognition on 25 December 2010. Existing units were the 245th Engineer Company, re-designated Company A, and the 245th Military Intelligence Company, re-designated Company B. New elements would be the Headquarters Company, itself composed largely of platoon and smaller elements of the Brigade Headquarters Company, such as the Military Police and CBRN platoons, and Company C, the new Network Support Company (Signal). A special troops battalion, in the modular Army organization, is a collection of units company size and smaller, that contain specialties other than that of the primary function of the Brigade or Division it is assigned to. An infantry STB is composed of an engineer company, a military intelligence company, and a signal company, with a headquarters company that contains support, security, military police and medical platoons and sections. The battalion motto, "All In," is emblematic of the wide variety of expertise, missions, and capabilities brought together under the battalion's aegis. The STB deployed with the brigade under the command of LTC