Armijska Ratna Komanda, Nuclear bunker in Konjic, Bosnia and Herzegovina.

The Armijska Ratna Komanda is an underground military command center in Konjic with over 100 rooms built into the mountain. The facility contains conference halls, living quarters, and operation centers connected by tunnels beneath layers of rock.

Construction of this command center began in 1953 under Yugoslavia's leadership as a secret military facility during the Cold War. The project took decades to complete and served as a critical part of Yugoslav defensive strategy.

The bunker now hosts contemporary art exhibitions and cultural events that take place in its underground rooms and command centers. This new use has transformed what was once a place of military strategy into a space where visitors can experience creative works beneath the mountain.

The bunker lies about 3.9 km southeast of Konjic on the right bank of the Neretva, inside Zlatar Hill. It is under the Bosnian Ministry of Defense and guarded by a five-soldier detachment, so entry is only possible on an organized visit. The interior stays at 21–23 °C with 60–70% humidity; bring a light layer.

The bunker's original code name was "Istanbul", and ARK reportedly stood for alatnica-remont-kalionica, a tool and repair workshop meant to serve the Igman ammunition factory. There is no confirmation that Tito ever set foot inside. A hidden emergency exit, not marked on any map, leads out of the complex.