10 June 1942

US 5th Air Force B-17 bombers launch another sortie on Japanese stronghold at Rabaul on New Britain island, New Guinea. Here Admiral Yamamoto is building a powerful collection of troops, ships and armaments.

Indian POWs from Burma are digging a maze of tunnels kilometres-long in the volcanic earth under the town to keep troops safe from Allied air raids. The tunnels include underground hospitals and bays where defenders can service submarines.