the Battle for Guadalcanal northern part of the island Battle of Buna–Gona Port Moresby Japan Guadalcanal United States Australia
Both plans started in July, but by mid-September, the Battle for Guadalcanal took priority for the Japanese, and troops in New Guinea were ordered to withdraw from the Port Moresby area to the northern part of the island, where they faced Australian and United States troops in the Battle of Buna–Gona.