Battle of Hamburger Hill the steeply-sloped hill against well entrenched troops. Attacks were repeatedly repelled by the PAVN defenses. Bad weather also hindered operations. Nevertheless, the Airborne troops took the hill through direct assault, causing extensive casualties to the PAVN forces. The battle took place on Dong Ap Bia (Ap Bia Mountain, ) in the rugged, jungle-shrouded mountains of South Vietnam, from the Laotian border. Rising from the floor of the western A Sầu Valley, Ap Bia Mountain is a solitary massif, unconnected to the ridges of the surrounding Annamite range. It dominates the northern valley, towering some above sea level. Snaking down from
Battle of Mission Ridge – Brigade Hill Port Moresby and was followed by an Australian advance towards the Japanese beachheads and heavy fighting around Buna–Gona. After the war, a battle honour was awarded to Australian units for involvement in the fighting around Mission Ridge, and the subsequent withdrawal to Menari. This was designated "Efogi – Menari". This battle honour was awarded to the 2/14th, 2/16th and 2/27th Infantry Battalions. Battle of Mission Ridge – Brigade Hill The Battle of Mission Ridge – Brigade Hill (also known as the Battle of Efogi) took place between 6 and 9 September 1942, during the Kokoda Track campaign of the Second