Know Our CGSS Staff - LTC (Ret) Jeffery Brown is currently serving as the Deputy Director, Department of Joint, Interagency, and Multinational Operations. He was commissioned in 1984 through the Reserve Officer Training Corps at Siena College. He served 22 years as a Field Artillery officer in various Army and Joint positions, culminating as an Instructor in the Department of Joint, Interagency, and Multinational Operations.