1944: Western New Guinea campaign/MacArthur
The code name for the whole Hollandia-Aitape operation was RECKLESS.

Hollandia: the Reckless Task Force

A well-designed deception effort fed General Adachi and his staff a steady diet of false information about an Allied landing in Hansa Bay that the Japanese were predisposed to believe. The deception was so successful that on the 24th and 41st Divisions, led by Lt. Gen. Robert L. Eichelberger, commander of I Corps and the RECKLESS Task Force, landed unopposed twenty-five miles apart at Hollandia.

NOISELESS reaching Tanahmerah Bay shortly before sunrise, and LETTERPRESS reaching Humboldt Bay about the same time. When the naval bombardment lifted there was little or no reaction from the enemy to either landing; it later turned out that the few Japanese on the coast had fled to the hills, some of them leaving their breakfast tea and rice still warm in their dugouts. The enemy had been taken completely by surprise.

Aitape: the Persecution Task Force

The landing at Aitape was made on schedule on the morning of 22 April. Here as at Hollandia, the Japanese (chiefly service troops) fled after the air and naval bombardment, offering little or no opposition. The landing beach, designated Blue, was better than the beaches at Hollandia and behind it lay ample firm ground for the supply dumps. By the evening of D-day, seven LST's had been unloaded, roads were under construction, and the airfields that were the main object of the landing area were in Allied hands.

In one swoop MacArthur had split the Japanese defenses on New Guinea in half, isolating Eighteenth Army in eastern New Guinea.