Upon graduation from the United States Naval Academy in 1981, Lieutenant General Beydler was commissioned into the United States Marine Corps and trained as a Marine aviator.
He is a graduate of Navy Fighter Weapons School, the Marine Aviation and Weapons Tactics Squadron One, Weapons and Tactics Instructor course, and the NATO Defense College. He has commanded at the Marine Fighter Attack Squadron, Marine Aircraft Group, Marine Aircraft Wing, Marine Expeditionary Force, Marine Component Command and Joint Force levels.
Lieutenant General Beydler's staff assignments include Headquarters, United States European Command where he served as the Division Chief of Joint Training, Readiness and Exercises. Lieutenant General Beydler served in Headquarters, 2nd Marine Aircraft Wing and in July 2005 deployed to the United States Central Command Combined Air Operations Center (CAOC) in Al Udeid, Qatar, as the Senior Marine Liaison Officer. In 2009, at Headquarters, United States Marine Corps, Lieutenant General Beydler served as the Director, Strategy and Plans Division within the Plans, Policies and Operations Directorate. From 2012 to 2014 Lieutenant General Beydler served as Director, Strategy, Plans and Policy, United States Central Command.
At United States Joint Forces Command, Lieutenant General Beydler served as the Director, Standing Joint Forces Headquarters, and following a major reorganization and operationalization of the unit, Lieutenant General Beydler became the first commander of the United States Joint Forces Command, Joint Enabling Capabilities Command on 1 October 2008. From July 2010 to July 2012, Lieutenant General Beydler commanded the 1st Marine Aircraft Wing in Okinawa, Japan. From July 2014 through October 2015, Lieutenant General Beydler commanded II Marine Expeditionary Force and United States Marine Corps Forces Africa in Camp Lejeune, North Carolina. On 27 October, 2015 Lieutenant General Beydler took command of United States Marine Corps Forces, Central Command at MacDill Air Force Base in Tampa, Florida relinquishing that command on 11 July, 2018. Lieutenant General Beydler was placed on the Retired List on 1 September, 2018 at the completion of over 37 years active duty.
Lieutenant General Beydler has accumulated approximately 4000 flight hours in tactical jet aircraft with over 3000 in the F/A-18.
His personal decorations include the Distinguished Service Medal, the Defense Superior Service Medal with two Bronze Oak Leaf Clusters, the Legion of Merit, Meritorious Service Medal with three Gold Stars, the Air Medal-Strike Flight with Numeral One, the Navy and Marine Corps Commendation Medal, and the Navy and Marine Corps Achievement Medal with one Gold Star.
Lieutenant General Beydler is married to the former Kimberly Stevens, the daughter of a career Navy Officer. They have two children, both Marines, Captain Shannon Hillery, a Judge Advocate, and First Lieutenant Robert Beydler, a newly winged Naval Aviator, currently training in the F/A-18.