61st Infantry Regiment landed at the northeast end of the island. Despite strong resistance, the Japanese established a beachhead that was soon reinforced by tanks and artillery. The defenders were quickly pushed back toward the stronghold of Malinta Hill. Late on May 6, Wainwright asked Homma for terms of surrender. Homma insisted that surrender include all Allied forces in the Philippines. Believing that the lives of all those on Corregidor would be endangered, Wainwright accepted. On May 8, he sent a message to Sharp, ordering him to surrender the Visayan-Mindanao Force. Sharp complied, but many individuals carried on the fight as guerrillas. Few unit commanders were so hard pressed as to be forced to surrender and none had any desire to surrender. Sharp's decision to surrender involved many factors. Major Larry S. Schmidt, in a 1982 master's degree thesis, said Sharp's decision was based on two reasons: that the Japanese were capable of executing the 10,000 survivors of Corregidor, and that Sharp now knew his forces would not be reinforced by the United States, as had been previously thought. List of U.S. generals who became prisoners-of-war Eighteen United States Army generals surrendered to Japanese forces by May 1942: Lieutenant General Jonathan M. Wainwright, commanding general, United States Forces in the Philippines (USFIP) Major General Albert M. Jones, commanding general, Philippine I Corps Major General Edward P. King, commanding general, Northern Luzon Major General George F. Moore, commanding general, Harbor Defenses of Manila and Subic Bays/Philippine Coast Artillery Major General George M. Parker, commanding general, Southern Luzon/Philippine II Corps Major General William F. Sharp, commanding general, Visayan-Mindanao Force Philippines Brigadier General Lewis C. Beebe, chief of staff to Lieutenant General Jonathan M. Wainwright Brigadier General Clifford Bluemel, commanding general, 31st Division (Philippines) Brigadier General William E. Brougher, commanding general, 11th Division (Philippines) Brigadier General Bradford G. Chynoweth, commanding general, 61st Division (Philippines) Brigadier General Charles C. Drake, commanding general, Quartermaster Corps in the Philippines Brigadier General Arnold J. Funk, chief of staff to Major General Edward P. King Brigadier General Maxon S. Lough, commanding general, Philippine Division Brigadier General Allan C. McBride, deputy chief of staff to General Douglas MacArthur and commanding general of the Service Command Area (died 9 May 1944 in a prisoner-of-war camp) Brigadier General Clinton A. Pierce, commanding general, 26th Cavalry Regiment (Philippine Scouts) Brigadier General Carl H. Seals, adjutant general, United States Army Forces in the