First Sergeant Eisenhour enlisted in the Marine Corps on June 6th, 2006 from Stafford, KS and reported to Marine Corps Recruit Depot (MCRD) San Diego for recruit training. He was assigned to Alpha Company, 1st Recruit Training Battalion. After graduating boot camp, Private First Class Eisenhour reported to Marine Combat Training Battalion, School of Infantry West Camp Pendleton, California. He was assigned to India Company. After graduating MCT, Private First Class Eisenhour was assigned the Military Occupation Specialty of Field Artillery Cannoneer (0811). He reported to Fort Sill, Oklahoma October 2006 for training. He was meritoriously promoted to Lance Corporal in December 2006.
In December of 2006 Lance Corporal Eisenhour reported to 3rd Battalion 11th Marine Regiment, Marine Corps Air Ground Combat Center (MCAGCC) 29 Palms, California. He was assigned to Kilo Battery. While assigned to Kilo Battery Lance Corporal Eisenhour deployed in support of Operation Iraqi Freedom(OIF) in June of 2007 as provisional infantry. In April of 2008 Corporal Eisenhour returned from OIF and attended Section Chief Course. In November of 2008 Corporal Eisenhour was meritoriously promoted to Sergeant. In October of 2009 Sergeant Eisenhour was transferred to Mike Battery, because of needs with in the battalion. While assigned to Mike Battery Sergeant Eisenhour deployed as a Section Chief in support of the 31st MEU aboard the USS Denver in June of 2010. In January 2011 Sergeant Eisenhour returned to MCAGCC 29 Palms, California.
In April 2011 Sergeant Eisenhour reported to Combat Instructor School, School of Infantry West. Upon completion Sergeant Eisenhour was assigned to India Company, Marine Combat Training Battalion as a Combat Instructor. In April 2012 Sergeant Eisenhour was transferred to Headquarters and Instructor Company to serve as a Primary Instructor for Weapons section. In September 2012 Sergeant Eisenhour was transferred back to India Company where he served as a Platoon Commander.
In July 2014 Sergeant Eisenhour reported to 1st Battalion, 10th Marine Regiment Camp Lejeune, North Carolina and was assigned to Kilo Battery. In February 2015 he went on the Unit Deployment Program to Okinawa, Japan serving as the Battery Local Security Chief, and returned in August 2015. Sergeant Eisenhour was promoted to Staff Sergeant in October 2015. In July of 2016 Staff Sergeant Eisenhour deployed to Eastern Europe as the Platoon Sergeant of the Artillery Platoon, Combined Arms Company, 2nd Battalion, 8th Marines, Black Sea Rotational Force 16.2. While in Europe Staff Sergeant Eisenhour participated in two large scale NATO exercises in the countries of Georgia and Norway. Staff Sergeant Eisenhour returned to Camp Lejeune, NC in January of 2017.
In June of 2017 Staff Sergeant Eisenhour transferred to 5th Battalion, 11th Marines in Camp Pendleton, CA and assigned to Sierra Battery. In November of 2018 Staff Sergeant Eisenhour deployed to Okinawa, JP as part of the Unit Deployment Program. Staff Sergeant Eisenhour returned from Okinawa in May of 2019 and became Sierra Battery Field Artillery Chief. In November of 2019 Staff Sergeant Eisenhour was promoted to Gunnery Sergeant and from November of 2019 to July 2020 served as Headquarters Battery Gunnery Sergeant.
In July of 2020 Gunnery Sergeant Eisenhour transferred to I&I Battery I, 3rd Battalion, 14th Marines in Allentown, PA. While serving in this capacity Gunnery Sergeant Eisenhour participated in three Annual Training events and multiple other exercises. In February of 2023 Gunnery Sergeant Eisenhour was promoted to the rank and First Sergeant and executed orders to Company B, 1st Battalion, 25th Marines.
First Sergeant Eisenhour is currently assigned as the Inspector-Instructor Unit Senior Enlisted Leader for Company B, 1st Battalion, 25th Marine Regiment.
First Sergeant Eisenhour's personal decorations include the Navy and Marine Corps Commendation Medal and Navy and Marine Corps Achievement Medal with Gold Star in lieu of second award.