Command Sergeant Major Jason E. Decker is a native of Iron Mountain, Michigan. He enlisted in the National Guard on December 16, 1996 as a 31U Communications Technician. While attending College at Northwestern Technical College in Green Bay, Wisconsin, he enlisted in the Active Army as a 63B Light Wheeled Vehicle Mechanic on February 23, 2000.

Command Sergeant Major Decker has served in numerous leadership positions including: Senior Mechanic, Maintenance Control Sergeant, BN S4 Supply NCOIC, First Sergeant, Senior NCO Maintenance Advisor and Command Sergeant Major.

Command Sergeant Major Decker's assignments include: 224th Military Intelligence Battalion, Hunter Army Airfield, Georgia; 305th Quartermaster Company, Yong San, South Korea; 5-7th Air Defense Artillery Patriot, Grossauheim, Hanau, Germany; 1/1 Infantry Border Transition Team (Class 11), Fort Riley, Kansas; 101st Brigade Support Battalion (2-34 AR) Forward Support Company, Fort Riley, Kansas; Program Executive Office Ground Combat Systems, Warren, Michigan; USASMA SMC Student (Class 66), Fort Bliss Texas, 3/4 Armored Brigade Combat Team, 64th Brigade Support Battalion, Fort Carson, Colorado and 916th Support Brigade, Fort Irwin, California. CSM Decker has deployed to Israel, Greece, Iraq, Afghanistan, Poland, and Kuwait for combat and peacekeeping operations.

Command Sergeant Major Decker's military education includes all levels of Noncommissioned Officer Education culminating with the United States Army Sergeants Major Academy (Class 66). CSM Decker is also a graduate of the following courses: Light Wheeled Vehicle Mechanic, Manager Development, Supervisor Development, Combatives Level 1, Military Transition Team, First Sergeant's course, Battalion and Brigade Pre-command course, Master Resilience Trainer, and Fundamental of System Acquisition Management.

Command Sergeant Major Decker's awards and decorations include: Legion of Merit, Bronze Star Medal with one Oak Leaf Cluster, Meritorious Service Medal with two Oak Leaf Clusters, Army Achievement Medal with three Oak Leaf Clusters, Valorous Unit Award, Army Superior Unit Award, Army Good Conduct Medal (6th award), National Defense Service Medal, Afghanistan Campaign Medal-Campaign Star (2nd award), Iraq Campaign Medal-Campaign Star, Global War on Terrorism Expeditionary Medal, Global War on Terrorism Service Medal, Korean Defense Service Medal, Non-Commissioned Officer Professional Development Ribbon (Numeral 5), Army Service Ribbon, Overseas Service Ribbon (Numeral 3), NATO Medal, Combat Action Badge, and the Driver and Mechanic Badge.