EOA 13: JOINT OPERATIONS IN THE PHILIPPINESBLUF: Macarthur developed an operational approach to defeat the Japanese on the Philippine IOT establish bases of supply/sustainment/support with in the range of the Japanese homelands. MAC developed a three phase operation utilizing a Decisive, Shaping and Sustaining framework. Within his campaign plan he used LOE- Military, Political & Security. Phase 1 was a Shaping OP to Establish conditions needed to conduct the decisive operation. The DO was the Attack on Luzon and the sustaining effort through ship to shore logistics until proper supply bases could be established on Luzon. Within Phase 1, Mac Identified Decision points to establish his forces and set conditions for phase 2. Phase 2 the shaping effort to Air and Naval Gun fire for the DO: the ground attack on Luzon at Lingayen Beach to the NW of Manila. Then the DO would continue the attack as the Main effort to Manila to secure the city, and then reconsolidate for future operations. They also planned further SO to attack and support the DO at Mike 7 and Mike 8.

DO: Seizure of Luzon, specifically Manila and the central plain IOT EST the Air, Naval, Land Base of supply for future offensive projection. SO: Air Support, Naval support in south china sea, Leyte and Mindoro attacks to secure air bases. SU: SUST support by Army service and naval LOG elements. Strategic OBJ: secure a supply base within range of Japan. Operational OBJ: seize Luzon, for power projection. IOT Enable Reconquista of the Philippines to set conditions for attacks on the Japanese homelands. Sea: 3rd fleet & 7th fleet, Air: 20& 21 & the 7th Air forcesGiven: Land 2 Armies (6th and 8th) Against: 14th army ~ 200k on islands. Considering: weather to attack China, Formosa. Japanese forces in the French-Indochina, the Kamikazes, balance between offensive momentum and logistical constraints. Had to choose between Formosa or Luzon. Allied prestige of liberating a former US colony.