U.S. Army Air Corps troops, naval personnel, and Philippine Constabulary. The pocket was then slowly forced back to the cliffs, with high casualties on both sides. Landings to reinforce the surviving pocket on January 26 and February 2 were severely disrupted by air attacks from the few remaining FEAF P-40s, then trapped and eventually annihilated on February 13. A penetration in the I Corps line was stopped and broken up into several pockets. General Homma on February 8 ordered the suspension of offensive operations in order to reorganize his forces. This could not be carried out immediately, because the 16th Division remained engaged trying to extricate a pocketed battalion of its 20th Infantry. With further losses, the remnants of the battalion, 378 officers and men, were extricated on February 15. On February 22, the 14th Army line withdrew a few miles to the north and USAFFE forces re-occupied the abandoned positions. The result of the "Battle of the Points" and "Battle of the Pockets" was total destruction of all three battalions of the Japanese 20th Infantry and a clear USAFFE victory. For several weeks, the Japanese, deterred by heavy losses and reduced to a single brigade, conducted siege operations while waiting refitting and reinforcement. Both armies engaged in patrols and limited local attacks. Because of the worsening Allied position in the Asia-Pacific region, U.S. President Franklin D. Roosevelt ordered MacArthur to relocate to Australia, as Supreme Allied Commander South West Pacific Area. (MacArthur's famous speech regarding the Philippines, in which he said "I came out of Bataan and I shall return" was made at Terowie, South Australia on March 20.) Wainwright officially assumed control of what was now termed United States Forces in the Philippines (USFIP) on March 23. During this period, elements of the U.S. Philippine Division were shifted to assist in the defense of other sectors. Beginning March 28, a new wave of Japanese air and artillery attacks hit Allied forces who were severely weakened by malnutrition, sickness and prolonged fighting. On April 3, the Japanese began to break through along Mount Samat, estimating that the offensive would require a month to end the campaign. The U.S. Philippine Division, no longer operating as a coordinated unit and exhausted by five days of nearly continuous combat, was unable to counterattack effectively against heavy Japanese assaults. On April 8, the U.S. 57th Infantry Regiment (PS) and the 31st Division (PA)