Lieutenant Colonel Dinsdale enlisted in the Selected Marine Corps Reserve and reported to Marine Corps Recruit Depot, San Diego, California in January 2000.
Following Motor Vehicle Operator training in Fort Leonard Wood, Missouri, he reported to Headquarters and Service Company, 1st Battalion, 23rd Marines in Houston, Texas. While serving with 1/23 he served as Motor Pool line NCO, while participating in 2 Combined Arms Exercises.
In March 2003, Lieutenant Colonel Dinsdale received his commission after completing Officer Candidates' Course 182, reported to The Basic School in April of that year, then proceeded to follow on training as a flight student that same year. Lieutenant Colonel Dinsdale completed Aviation Preflight Indoctrination, Primary Flight Training at VT-6, and Advanced Helicopter Training at HT-8 all while stationed in the Pensacola and Milton, Florida area. Lieutenant Colonel Dinsdale was designated a winged, Naval Aviator in May 2005, then reported to HMLAT-303 at Camp Pendleton Air Station, California for training in the AH-1W Cobra in June that same year.
In January 2006, Lieutenant Colonel Dinsdale reported to Marine Aircraft Group 29 at New River Air Station, North Carolina and was subsequently assigned to Marine Light Attack Helicopter Squadron 167. With the Warriors, Lieutenant Colonel Dinsdale served in the S-5, and in Operations as Schedule Writer, Ground Training Officer, and Anti-Terrorism/Force Protection Officer. He completed multiple large-scale exercises and Special Operations training support, and deployed twice with the Warriors, in support of OPERATION IRAQI FREEDOM 05-07.2 and OPERATION IRAQI FREEDOM 8.2.
In March 2009, Lieutenant Colonel Dinsdale reported to 2D Light Armored Reconnaissance Battalion aboard Camp LeJeune, North Carolina where he served as the Battalion Air Officer and Assistant Operations Officer. Lieutenant Colonel Dinsdale deployed to Helmand Province, Afghanistan in May 2009, in support of OPERATION ENDURING FREEDOM. Upon return from Afghanistan on Thanksgiving Day 2009, Lieutenant Colonel Dinsdale was selected by the Battalion Commander to lead Headquarters and Service Company as the Company Commander.
In June 2010, Lieutenant Colonel Dinsdale reported to Marine Light Attack Helicopter Squadron 467 aboard Marine Corps Air Station Cherry Point, North Carolina. With the Sabers, Lieutenant Colonel Dinsdale served as the S-4A, Airframes OIC, and S-4 Officer. He supported exercise Atlantic Strike twice, OPERATION BOLD ALLIGATOR LFE, and exercise Desert Talon. While with the Sabers, Lieutenant Colonel Dinsdale was board selected for the first iteration of the Commandant's Career-Level Education Board.
In July 2012 Lieutenant Colonel Dinsdale checked in to The Presidio of Monterey in Monterey, California for attendance at the Naval Post-Graduate School. Lieutenant Colonel Dinsdale graduated from NPS in March 2014 with a Master's of Science in Management, and qualified for the AMOS of 8840.
In May of 2014 Lieutenant Colonel Dinsdale reported to Quantico, Virginia where he served under the Deputy Commandant for Manpower and Reserve Affairs. Lieutenant Colonel Dinsdale served in Reserve Affairs Division as the Reserve Officer Planner from May 2014 to February 2015. Lieutenant Colonel Dinsdale then served in Manpower Plans, Programs, and Policy Division as the Aviation Officer Inventory Planner from February 2015 to June 2017.
In July 2017, Lieutenant Colonel Dinsdale accessed to the Active Reserve program, and checked in to 4th Marine Aircraft Wing, where he served as the Director of Safety and Standardization until September 2019 when he assumed the duties as the 4th Marine Aircraft Wing Assistant Chief of Staff, G-1.
Lieutenant Colonel Dinsdale reported to MATSG-42 Headquarters in July 2020 and currently serves as the Executive Officer.
His personal decorations include the Meritorious Service Medal with Gold Star, Air Medal / Strike Flight w/numeral 4, Navy and Marine Corps Commendation Medal with combat distinguishing device, Navy and Marine Corps Achievement Medal with 2 Gold Stars, and Combat Action Ribbon.