Angels Of War: The Impact Of The Airborne Force During The Recapture Of Corregidor
West Point Press
"General Walter Krueger, commanding US 6th Army, determined that the capture of the island Corregidor was necessary to accessing the port at Manila.1 In 1945, Corregidor—previously an American fortress until captured by the Japanese in 1942—guarded the entrance to Manila Bay. 6th Army intelligence assessed the Japanese garrison consisted of approximately 850 combatants..."
Marco, Anthony. “Angels Of War: The Impact Of The Airborne Force During The Recapture Of Corregidor.” Report: West Point Undergraduate Historical Review. Volume 11 (Spring 2021): 71-85.