Joseph Clearfield

Lieutenant General Joseph R. Clearfield is a United States Marine Corps officer who heads the US-led Ceasefire monitoring mechanism established following the Lebanon truce of 16 April 2026. Clearfield was commissioned as a Second Lieutenant in 1993 after graduating from Union College, Schenectady, with a degree in history. He served as commander of the 15th Marine Expeditionary Unit and held staff appointments including Current Operations Section Head at Marine Corps Headquarters and military assistant to the Assistant Secretary of Defense for Asian Pacific Security Affairs in OSD-Policy.

In September 2025, Clearfield was nominated to command Marine Forces Central Command (MARCENT), based in Tampa, Florida, and was confirmed as a Lieutenant General. MARCENT commands all US Marine Corps forces in the Middle East theatre — a role that positioned Clearfield as the senior US military officer most directly engaged with the Lebanon Ceasefire framework when it was established in April 2026.

The Ceasefire monitoring mechanism he chairs oversees implementation of the Israel-Hezbollah truce, including monitoring Israeli force withdrawal timelines and Lebanese Armed Forces deployment into southern Lebanon. On 3 May 2026, Lieutenant General Clearfield met Lebanese army commander-in-chief General Rodolphe Haykal in Beirut in a session described by Lebanese state media as 'exceptional' — the highest-tempo military-to-military contact since the ceasefire took effect. The meeting occurred the day after Israeli air strikes killed 41 people across southern Lebanon, placing the mechanism under its most significant stress test.