1° 57' 0S Long 147° 20' 60E Ndrilo Island is located to the northeast of Manus Island near Los Negros Island.
On April 1, 1944 the US Army 12th Cavalry, 1st Squadron (reinforced)
was tasked with seizing and mopping up Ndrilo Island. In preparation for the
landing on Koruniat and Ndrilo, which
had earlier been suspected of harboring naval guns. PT boats and a
rocket boat and artillery provided preparatory bombardment of Ndrilo while RAAF aircraft performed bombing and strafing with heavy mortar fire from nearby
Mokerang Point preceded the assault. The US Army forces landed in native canoes.
No Japanese were found on Ndrilo, and the next day the 1st Squadron
returned to Lombrum Point.
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January 11, 2018