The Liberation of the Philippines Part 1
Philippines Campaign – Preliminaries
The Battle of Guam June 1944
The first major operation is the assault on Guam, which Towers and Nimitz hope will draw out the Japanese fleet. However the Japanese have already determined that while critical, they cannot get all of the needed airpower into position to support the Mobile Fleet in the Marianas. The 11th Army, commanded by General Osanoe, has 45,000 soldiers and sailors and orders to fight as long as possible. He has constructed strong positions and intends to meet the Americans on the beaches and then crush them in a full scale counterattack. The Americans storm ashore with the 1st Marine Division and Americal Division, with the 41st Infantry Division in reserve commanded by General “Howlin Mad” Smith. Heavy gunfire support by six old battleships all armed with 14 inch guns, as well as numerous cruisers and destroyers and air support from a fleet of 12 escort carriers is enough to get the landing force ashore in spite of heavy losses. Without valuable intelligence provided by locals led by Petty Officer George Tweed, who survived 3 years on the run from the Japanese after Guam fell, the assault might have been even more costly. The Marines and National Guardsmen take the island in fierce fighting with the climax a massive banzai charge with 10,000 Japanese troops against the 132nd Infantry Regiment, an Illinois National Guard regiment assigned to the Americal very nearly destroys all three of its infantry battalions before support from the two adjacent regiments and a strong attack by the 162nd Infantry Regiment (Oregon National Guard) with tank battalions from all 3 divisions destroys the spearhead and overruns the survivors. In a week, the 3 American divisions suffer 13,000 casualties, including 4,000 dead, but have shattered the Japanese as an organized force. The the National Guard troops mop up resistance over the next two weeks, with the island completely secured by July 3. Only 3,000 Japanese and Korean troops are taken alive.
Yap and the Palau Islands
These landings occur on June 24, and involve General Geiger's II Amphibious Force with the 2nd Marine Division (Yap) 3rd Marine Division (Peleleiu) and 5th Infantry Division as a reserve. Defending is the Japanese 15th Army (Mutaguchi) with a brigade of the 86th Infantry Division at Yap, and a brigade of the 81st Infantry Division at Peleliu. This time the Japanese try a different strategy, foregoing the previously fierce counterattacks and have dug into caves and tunnels for a longer drawn out defense. This works very well, and in spite of heavy fire support from the 16 and 14 inch guns of six American battleships and strong air support, clearing both islands takes nearly six weeks and costs the Americans a total of 20,000 casualties, including 6,000 dead, and neither Marine Division will be combat effective again until March 1945. Both divisions are pulled out of action after a month, and the Army infantry finishes up the final mopping up. In all 16,000 Japanese are killed, with only 500 captured in this costly battle.
Iwo Jima and Ulithi
However, with the capture of Guam, Pelelieu, and Yap, as well as the capture of Ulithi atoll (defended by a single company of Japanese naval troops), the Allies have the air and naval bases needed for the invasion of the Philippines. Although costly, the 10th Army (Simpson) still has reserves available after these landings and takes the opportunity to land the 5th and 6th Marine Brigades at Iwo Jima on August 18, which is defended by only a brigade of Japanese naval troops, and in a week of fighting and 2,500 American casualties destroys the 3,000 man Japanese garrison and secures an island within long range fighter range of Tokyo.
Filipino Uprising in the Philippines
The Army of the Philippines was left a strong cadre from the beginning, with a regiment of each of the 10 Filipino Army divisions having orders to act as stay behind troops and form the cadre of a resistance force. By 1944 all of these divisions are up to full strength in numbers, with a total of 75,000 full time troops led by trained American and Filipino officers and armed with weapons such as the M1 Carbine and a variety of mortars and a sizable number of bazookas as well. Routine visits by submarines brought in specialists and special equipment throughout 1942 and 1943, and with the American conquest of western New Guinea in early 1944, the Filipino Army has constructed a number of air strips and prepared landing zones so that American cargo planes can bring in or airdrop many tons of supplies and even more specialists. A network of radio stations has been established throughout the islands, while in much of the interior the Filipinos are in complete control and a shadow government, led by appointees from the Filipino Commonwealth government (in exile) handles much of the civilian administration. In addition to the full time guerillas there are also nearly 250,000 others who are part-time members of the National Army or who are providing intelligence to the Allies. All of this is being led by General Allen Dulles of the Office of Strategic Services (OSS) with General Robert Frederick, who led the 1st Special Service Force in the Aleutians Campaign having been brought into the Philippines to command the ground combat forces in October 1943.
In August, even as American aircraft begin operations out of Yap and Peleliu, and the 13th Air Force transitions from a tactical air force to an airborne assault and airlift force, the Filipino Army begins full scale operations to push the Japanese out of the hinterlands in the central and southern Philippines and push them into smaller more easily defended but more compact areas. The Japanese fall back to the port cities under heavy pressure in fighting that will eventually cost 100,000 Filipino lives (most of whom are civilians) but also inflicts over 40,000 Japanese casualties throughout the islands as fighting also becomes frequent in the highlands of Luzon.
The Japanese in the Philippines consist of the 13th Area Army (Okuda) with the 14th Army in Luzon (2 divisions (Kuroda) plus several brigades of Naval troops, the 18th Army (Adachi) with a division each in Cebu, Leyte, and Paney, and the 43rd Army (Hoskara) with 2 divisions in Mindanao, and another in Palawan. All told the Japanese have 200,000 troops in the islands, a far cry from the planned 400,000 they had planned on (or authors note, the 530,000 in OTL). The Soviet entry into the war has pulled every available unit of the Imperial Army into Northern China, Manchuria and Siberia and while new formations and divisions are hurriedly being formed, none are available for deployment. The Japanese do however have a powerful Air Army with 500 combat aircraft deployed in Luzon, as well as nearly 2,000 land based Naval aircraft and 600 carrier aircraft assigned to carry out Operation Sho-Go.
In early May, the first Allied special operations troops begin to arrive in quantity as the Canadian-American 1st Special Service Force, the Australian-American 2nd Special Service Force, the Alamo Scouts and the 1st and 2nd Army Ranger Battalions arrive in the Philippines by submarine and transport aircraft. This provides Dulles and Frederick high quality commando type troops to spearhead attacks by their Filipino guerrillas. Also brought in by air is a mobile army surgical hospital for Mindanao and another for Samar, where General Peralta and his 61st Filipino Infantry Division have contained the Japanese on Panay island and forced their evacuation from Samar itself.
The Filipinos are more than ready for liberation by Eisenhower and his armies.