Even though it stopped attacking in February, Japanese army resumed bombing by aircrafts late in March. Land power, now 50,000 by reinforcement, started to bombard and charge forward from April 3rd. Beleaguered US troops in Bataan Peninsula finally yielded; most of its units surrendered by April 11th, the number of prisoners were as many as 70,000.
The final stronghold for remaining US troops was Corregidor Island across the sea. After the bombing and bombardment there by Japanese army, the long-lasting conquest came to an end when US troops waved the white flag on May 6th.
U.S. Army Forces Far East Commander, General MacArthur reached Australia on March 12th, escaped form Philippines by the order of President Roosevelt. He declared the famous "I shall return" in his speech on March 20th.