Osan welcomes new MDSS commander

U.S. Air Force Lt. Col. Jacob Williams, right, incoming commander of the 51st Medical Support Squadron, accepts command of the 51st MDSS from Col. Amanda Siangco, 51st Medical Group commander, during a change of command ceremony at Osan Air Base, Republic of Korea.

(Photo by Staff Sgt. Sarah Williams/U.S. Air Force)

OSAN AIR BASE, Republic of Korea -- The 51st Medical Support Squadron welcomed Lt. Col. Jacob Williams as their new commander during a change of command ceremony at Osan Air Base, Republic of Korea, June 22, 2026. A change of command ceremony formally transfers authority and responsibility from one commander to another, ensuring continuity of leadership and mission readiness within the Wing.

Osan Air Base