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Leaders

CD&I Leadership Bios
CG, MCCDC / DC, CD&I

Lieutenant General Eric Austin

Lieutenant General Eric Austin was commissioned a second lieutenant in 1991, earned his wings as a naval aviator in 1994, and selected to fly the AV-8B Harrier. Lieutenant General Austin has extensive operational and tactical experience in the AV-8B, to include deployment aboard amphibious shipping...

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ADC, CD&I

SES Todd Calhoun

Dr. Todd Calhoun was appointed the first Assistant Deputy Commandant for Combat Development & Integration and Executive Deputy, Marine Corps Combat Development Command in November 2023. He previously served as Executive Director of Marine Corps Systems Command, where he was the senior acquisition...

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Sergeant Major

Sergeant Major Peter Siaw

Sergeant Major Peter A. Siaw currently serves as the Command Senior Enlisted Leader, Marine Corps Combat Development Command / Sergeant Major, Combat Development & Integration.Prior to his appointment on 11 July 2025, he served as the Command Senior Enlisted Leader, I Marine Expeditionary Force;...

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Combat Development & Integration