Mandala Bhakti Museum, Military museum in Semarang, Indonesia.

The Mandala Bhakti Museum occupies a two-story colonial building with stone foundations, plastered brick walls, and a traditional tile roof in central Semarang. Inside are displayed weapons, documents, and uniforms that document the development of Indonesia's armed forces across different time periods.

Designed by Dutch architect I. Kuhr E. of the firm Ooiman and van Leeuwen, the building was erected around 1906 to house the Raad van Justitie, the high court for Europeans in Semarang. In the 1950s it served as the headquarters of Kodam IV/Diponegoro's Regional Defense Command II, and in 1985 it became a museum of the Indonesian armed forces.

The museum displays weapons, photographs, and personal items that reveal how Indonesia built its armed forces over time. Visitors encounter objects that show the military's role in the nation's modern story and independence struggle.

The museum stands at Jalan Sugiyopranoto No. 2, in the Tugu Muda area, with its entrance facing north. It opens Monday to Friday from 08:00 to 15:00 and Saturday from 08:00 to 12:30 local time. The two-storey building has a front veranda on both levels.

A 25-pound field gun stands prominently at the entrance, immediately catching visitors' eyes. Inside, you can see an original Luger pistol used during the five-day battle of Semarang, offering a direct link to this intense military moment in the city's past.