Landing at Nadzab

Landing at Nadzab
Part of World War II, Pacific War
5 September 1943. Dwarfed by and silhouetted against clouds of smoke generated to provide concealment, C-47s from the US Army Air Forces drop a battalion of the 503rd Parachute Regiment at Nadzab, New Guinea. A battalion dropped minutes earlier is landing in the foreground.
Date 5 September 1943 Location 6°33′S 146°42′E / 6.550°S 146.700°E / -6.550; 146.700 Nadzab, Morobe Province, Territory of New Guinea Result Allied victory
Belligerents
United States  Australia	Japan
Commanders and leaders
Douglas MacArthur George Kenney Thomas Blamey Edmund Herring George Alan Vasey	Hitoshi Imamura Hatazō Adachi Kumaichi Teramoto Hidemitsu Nakano
Strength
6,000	2,000
Casualties and losses
119 killed 241 wounded or injured 166 evacuated sick.	Unknown

The Landing at Nadzab was an airborne landing on 5 September 1943 during the New Guinea campaign of World War II in conjunction with the landing at Lae. The Nadzab action began with a parachute drop at Lae Nadzab Airport, combined with an overland force.

The parachute drop was carried out by the US Army's 503rd Parachute Infantry Regiment and elements of the Australian Army's 2/4th Field Regiment into Nadzab, New Guinea in the Markham Valley, observed by General Douglas MacArthur, circling overhead in a B-17. The Australian 2/2nd Pioneer Battalion, 2/6th Field Company, and B Company, Papuan Infantry Battalion reached Nadzab after an overland and river trek that same day and began preparing the airfield. The first transport aircraft landed the next morning, but bad weather delayed the Allied build up. Over the next days, the 25th Infantry Brigade of the Australian 7th Division gradually arrived. An air crash at Jackson's Field ultimately caused half the Allied casualties of the battle.

Once assembled at Nadzab, the 25th Infantry Brigade commenced its advance on Lae. On 11 September, it engaged the Japanese soldiers at Jensen's Plantation. After defeating them, it engaged and defeated a larger Japanese force at Heath's Plantation. During this skirmish, Private Richard Kelliher won the Victoria Cross, Australia's highest award for gallantry. Instead of fighting for Lae, the Japanese Army withdrew over the Saruwaged Range. This proved to be a gruelling test of endurance for the Japanese soldiers who had to struggle over the rugged mountains; in the end, the Japanese Army managed to withdraw its forces from Salamaua and Lae, though with extensive losses from exposure and starvation during the retreat. Troops of the 25th Infantry Brigade reached Lae shortly before those of the 9th Division that had been advancing on Lae from the opposite direction.

The development of Nadzab was delayed by the need to upgrade the Markham Valley Road. After strenuous efforts in the face of wet weather, the road was opened on 15 December 1943. Nadzab then became the major Allied air base in New Guinea.