Captain Kaster was commissioned in June 2005 following his graduation from Massachusetts Maritime Academy with a Bachelor of Science Degree in International Maritime Business.
Following graduation from The Basic School and The Infantry Officers Course, he reported for duty with 3d Bn, 6th Marines in Camp Lejeune, NC. While at 3/6 Captain Kaster served as a rifle platoon and weapons platoon commander in Lima and India Company. He deployed twice in support of Operation Iraqi Freedom during his tenure there.
From 2009-2011, Captain Kaster reported to Marine Corps Combat Service Support Schools where he served as the operations officer of the Marine Corps Water Survival School.
In November of 2011, he attended the United States Army Maneuver Captains Career Course in Fort Benning, GA.
Following MCCC Captain Kaster reported to 3d Bn, 2d Marines in Camp Lejeune, NC where he assumed command of Kilo Company. He deployed as the commander of troops aboard the USS Carter Hall, LSD-50 and served as the mechanized raid force commander from March through November 2013 as part of the 26th Marine Expeditionary Unit in support of Operation Enduring Freedom.
His personal decorations include the Purple Heart Medal, Navy and Marine Corps Commendation Medal (Gold star in lieu of second award), the Navy Achievement Medal (Gold star in lieu of second award) and the Combat Action Ribbon.