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 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 World War. Involving forces from Australia, the United States, and Japan, the fighting centred on a high feature south of the village of Efogi on the Kokoda Track. The battle was part of a series of battles fought along the track as the Japanese South Seas Detachment under Major General Tomitaro Horii advanced south towards Port Moresby, coming after the Australians had