Fort Marlborough is a fortification built by the British during their brief rule of Bengkulu, Indonesia, on Sumatra's western coast. During the Great Panic, as many other remnants of colonial fortresses throughout the archipelago, it became a focal point for refugees and resistance towards the threat of the Walking blight in that part of the region, aside from the official safe zone at the offshore Enggano island. Strengthened with materials from the surrounding city, and the general luck in location - a relatively low densely populated area west of an additional natural barrier, the Bukit Barisan mountains - it rode the crisis relatively well compared to other similar structures in the western part of the archipelago.
Nusa Kambangan is a small Indonesian island south of Java, separated only by a narrow strait. Dubbed as the 'Alcatraz of Indonesia', it has been home to prisons since the Dutch era, and for the modern republic that replaced it, a place for high-security prisons and location of inmates' execution.
Following the retreat from Java, it was overrun, like many places around Indonesia's most populated island, but the facilities managed to hold out. From there, the defenders slowly reclaimed the rest of the island, and at the end of the war, it became one of the independent safe zones not controlled by the remnants of the government in the archipelago.