Commandant's Call S1E6: Col. Ethan Diven Bids Farewell as CGSC Commandant

June 29, 2026

With the conclusion of the latest graduation ceremony for the Command and General Staff Officers Course (CGSOC) — the flagship program of the U.S. Army Command and General Staff College (CGSC) — the institution is officially bidding farewell to its outgoing Commandant, Colonel Ethan Diven.

In Episode 6 of Season 1 of Commandant's Call — and Col. Diven's final appearance on the show — Sergeant Major Matt Ladd sits down with the outgoing Commandant for an in-depth conversation reflecting on his time in the role. The discussion covers a wide range of topics, including:

• The journey and challenges of assuming the role of Commandant
• Leading the modernization of Professional Military Education (PME)
• The importance of officer career development and how it was put into practice

During his tenure, Col. Diven was a driving force behind PME modernization efforts, working to enhance the real-world applicability and instructional quality of CGSC's curriculum — laying an important foundation for developing the U.S. Army's next generation of senior commanders.

This episode is produced by Small Wars Journal, published under Arizona State University.

This article was originally published by Arizona State University's Small Wars Journal.

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