The Principal Staff Officer, abbreviated as PSO, is the head of the Armed Forces Division, a ministry level joint forces headquarters under Prime Minister's Office. It acts as the high command of the national armed forces. It is currently held by a three-star rank lieutenant general.
Image: Abdus Salam (general) (cropped)
Image: Director General, Bangladesh Rifles (BDR) Major General Md. Jahangir Alam Choudhury
Image: Masud Uddin Chowdhury