ポートモレスビー作戦
The Japanese then planned an overland attack to capture the town by advancing from the north coast. Having already captured much of the Territory of New Guinea earlier that year, they landed on 21 July 1942, to established beachheads at Buna, Gona and Sanananda. This marked the beginning of the Kokoda Track campaign. The South Seas Detachment, under command of Major General Tomitarō Horii, advanced using the Kokoda Track to cross the rugged Owen Stanley Range.