[3] Though he temporarily used a room at Hotel Merdeka (now Inna Garuda) for his base of command, soon the Sultan of Yogyakarta, Hamengkubuwono IX, donated the former Japanese barracks to be the Army's designated headquarters.

[1] It is used as the departure point for military cadets who must retrace the 100-kilometre (62 mi) long route used by Sudirman on his guerrilla campaign before they can graduation.

On either side of the entrance are rooms dedicated to Sudirman (to the east) and Oerip (to the west), the first leaders of the Indonesian military.

After the war room, visitors see displays of various weaponry, a mock-up of a field kitchen used during the revolution, and a collection of communications and medical equipment.

The three rooms after this are focused on various military operations in the 1950s, including the crackdown on the Darul Islam, fights against the Communist Party of Indonesia, and several separatist elements.

The final room is dedicated to the elimination of the Communist Party of Indonesia, which the Army blames for the 30 September movement.

This collection includes a uniform worn by Colonel Sarwo Edhie Wibowo and weapons and doctrinal material from the Communist Party.