The invasion of the Philippines started on December 8, 1941, ten hours after the attack on Pearl Harbor. As at Pearl Harbor, American aircraft were severely damaged in the initial Japanese attack. Lacking air cover, the American Asiatic Fleet in the Philippines withdrew to Java on December 12, 1941. General Douglas MacArthurescapedCorregidor on the night of March 11, 1942 for Australia, 4,000 km away. The 76,000 starving and sick American and Filipino defenders on Bataan surrendered on April 9, 1942, and were forced to endure the infamous Bataan Death March on which 7,000–10,000 died or were murdered. The 13,000 survivors on Corregidor surrendered on May 6.
Japan occupied the Philippines for over three years, until the surrender of Japan. A highly effective guerilla campaign by Philippine resistance forces controlled sixty percent of the islands, mostly jungle and mountain areas. MacArthur supplied them by submarine, and sent reinforcements and officers. Filipinos remained loyal to the United States, partly because of the American guarantee of independence, and also because the Japanese had pressed large numbers of Filipinos into work details and even put young Filipino women into brothels.
General MacArthur kept his promise to return to the Philippines on October 20, 1944. The landings on the island of Leyte were accomplished by a force of 700 vessels and 174,000 men. Through December 1944, the islands of Leyte and Mindoro were cleared of Japanese soldiers. During the campaign, the Imperial Japanese Army conducted a suicidal defense of the islands. Cities such as Manila were reduced to rubble. Between 500,000 and 1,000,000 Filipinos died during the occupation.
Japan launched an attack on the Philippines on December 8, 1941, just ten hours after their attack on Pearl Harbor. Initial aerial bombardment was followed by landings of ground troops both north and south of Manila. The defending Philippine and United States troops were under the command of General Douglas MacArthur, who had been recalled to active duty in the United States Army earlier in the year and was designated commander of the United States Armed Forces in the Asia-Pacific region. The aircraft of his command were destroyed; the naval forces were ordered to leave; and because of the circumstances in the Pacific region, reinforcement and resupply of his ground forces were impossible. Under the pressure of superior numbers, the defending forces withdrew to the Bataan Peninsula and to the island of Corregidor at the entrance to Manila Bay. Manila, declared an open city to prevent its destruction, was occupied by the Japanese on January 2, 1942.
The Philippine defense continued until the final surrender of U.S.-Philippine forces on the Bataan Peninsula in April 1942 and on Corregidor in May. Most of the 80,000 prisoners of war captured by the Japanese at Bataan were forced to undertake the infamous "Bataan Death March" to a prison camp 105 kilometers to the north. Thousands of men, weakened by disease and malnutrition and treated harshly by their captors, died before reaching their destination.Quezon and Osmeña had accompanied the troops to Corregidor and later left for the United States, where they set up a government-in-exile.MacArthur was ordered to Australia, where he started to plan for a return to the Philippines.
Warning for local residents to keep their premises sanitary or face punishment.
A 100 Pesos note made by the Japanese during the occupation.
The Japanese military authorities immediately began organizing a new government structure in the Philippines. Although the Japanese had promised independence for the islands after occupation, they initially organized a Council of State through which they directed civil affairs until October 1943, when they declared the Philippines an independent republic. Most of the Philippine elite, with a few notable exceptions, served under the Japanese. The puppet republic was headed by President José P. Laurel. Philippine collaboration in puppet government began under Jorge B. Vargas, who was originally appointed by Quezon as the mayor of Greater Manila before Quezon departed Manila. The only political party allowed during the occupation was the Japanese-organized KALIBAPI. During the occupation, most Filipinos remained loyal to the United States, and war crimes committed by forces of the Empire of Japan against surrendered Allied forces, and civilians were documented.
Japanese occupation of the Philippines was opposed by active and successful underground and guerrilla activity that increased over the years which eventually covered a large portion of the country. Opposing these guerrillas were a Japanese-formed Bureau of Constabulary (later taking the name of the old Constabulary during the Second Republic),Kempeitai, and the Makapili. Postwar investigations showed that about 260,000 people were in guerrilla organizations and that members of the anti-Japanese underground were even more numerous. Such was their effectiveness that by the end of the war, Japan controlled only twelve of the forty-eight provinces.
The Philippine guerrilla movement continued to grow, in spite of Japanese campaigns against them. Throughout Luzon and the southern islands, Filipinos joined various groups and vowed to fight the Japanese. The commanders of these groups made contact with one another, argued about who was in charge of what territory, and began to formulate plans to assist the return of American forces to the islands. They gathered important intelligence information and smuggled it out to the U.S. Army, a process that sometimes took months. General MacArthur formed a clandestine operation to support the guerrillas. He had Lieutenant Commander Charles "Chick" Parsons smuggle guns, radios and supplies to them by submarine. The guerrilla forces, in turn, built up their stashes of arms and explosives and made plans to assist MacArthur's invasion by sabotaging Japanese communications lines and attacking Japanese forces from the rear.
Various guerrilla forces formed throughout the archipelago, ranging from groups of U.S. Army Forces Far East (USAFFE) forces who refused to surrender to local militia initially organized to combat banditry brought about by disorder caused by the invasion. Several islands in the Visayas region had guerrilla forces led by Filipino officers, such as Colonel Macario Peralta in Panay, Major Ismael Ingeniero in Bohol, and Captain Salvador Abcede in Negros. The island of Mindanao, being farthest from the center of Japanese occupation, had 38,000 guerrillas who were eventually consolidated under the command of American civil engineer Colonel Wendell Fertig.
One resistance group in the Central Luzon area was known as the Hukbalahap (Hukbo ng Bayan Laban sa Hapon), or the People's Anti-Japanese Army, organized in early 1942 under the leadership of Luis Taruc, a communist party member since 1939. The Huks armed some 30,000 people and extended their control over portions of Luzon. However, guerrilla activities on Luzon were hampered due to the heavy Japanese presence and infighting between the various groups, including Hukbalahap troops attacking American-led guerrilla units.
Lack of equipment, difficult terrain and undeveloped infrastructure made coordination of these groups nearly impossible, and for several months in 1942, all contact was lost with Philippine resistance forces. Communications were restored in November 1942 when the reformed Philippine 61st Division on Panay island, led by Colonel Macario Peralta, was able to establish radio contact with the USAFFE command in Australia. This enabled the forwarding of intelligence regarding Japanese forces in the Philippines to SWPA command, as well as consolidating the once sporadic guerrilla activities and allowing the guerrillas to help in the war effort. Among the signal units of Col Peralta were the 61 Signal Company manned by 2Lt Ludovico Arroyo Bañas, which was attached to forces of the 6th Military Division, stationed in Passi, Iloilo, under the command of Captain Eliseo Espia; and the 64th Signal Company of the same Military Division, under the command of Lieutenant Colonel Cesar Hechanova, to which 2nd Lieutant Bañas was given the responsibility sometime later.[disputed– discuss][undue weight?– discuss]
Increasing amounts of supplies and radios were delivered by submarine to aid the guerrilla effort. By the time of the Leyte invasion, four submarines were dedicated exclusively to the delivery of supplies.
Other guerrilla units were attached to the SWPA, and were active throughout the archipelago. Some of these units were organized or directly connected to pre-surrender units ordered to mount guerrilla actions. An example of this was Troop C, 26th Cavalry. Other guerrilla units were made up of former Philippine Army and Philippine Scouts soldiers who had been released from POW camps by the Japanese. Others were combined units of Americans, military and civilian, who had never surrendered or had escaped after surrendering, and Filipinos, Christians and Moros, who had initially formed their own small units. Colonel Wendell Fertig organized such a group on Mindanao that not only effectively resisted the Japanese, but formed a complete government that often operated in the open throughout the island. Some guerrilla units would later be assisted by American submarines which delivered supplies, evacuate refugees and injured, as well as inserted individuals and whole units, such as the 5217th Reconnaissance Battalion, and Alamo Scouts.
By the end of the war, some 277 separate guerrilla units, made up of some 260,715 individuals, fought in the resistance movement. Select units of the resistance would go on to be reorganized and equipped as units of the Philippine Army and Constabulary.
The Moro Muslims of Mindanao and Sulu took up arms and fought hard against the Japanese invasion and helped defeat the Japanese occupation. Some of the Moros had been fighting the Americans just weeks before the Japanese invaded and proceeded to direct their fight against the new invaders as well. Sultan Jainal Abirin II of Sulu opposed the Japanese invasion.
The Moro juramentados performed suicide attacks against Japanese troops. The Japanese were among several enemies the Moros juramentados launched suicide attacks against, the others being the Spanish, Americans and Filipinos, while the Moros did not ever attack the Chinese since the Chinese were not considered enemies of the Moro people. The Japanese responded to these suicide attacks by massacring all the relatives of the attacker.
An American POW Herbert Zincke recalled in his secret diary that the Japanese guarding him and other prisoners were scared of the Moro warriors and tried to keep as far away from them as possible to avoid getting attacked. The American First Lieutenant Mel Amler recalled that some of the Moros would sometimes attack and stab Japanese, Filipino, and Americans, fighting all of them at once. Neither the Moros nor the Japanese respected the Geneva Convention in regards to not attacking medics, the Moros out of ignorance and the Japanese because they did not sign the treaty. American General Robert L. Eichelberger saw a Japanese soldier who was captured by the Moros and feared being tortured at their hands, and he wanted Eichelberger to kill him to stop it from happening. The American POW Victor L. Mapes saw Japanese troops getting ambushed and slaughtered by Moro fighters with kris blades. The Moros were skilled at melee combat, with some Moros deliberately impaling their own shoulder on Japanese bayonets and grabbing it to make it stay in place while killing the Japanese soldier using a bayonet or bolo with their other hand.
Anti-Japanese Moro units like the Maranao Militia were led by Salipada Pendatun, another anti-Japanese Moro unit, the Moro-Bolo Battalion was led by Datu Gumbay Piang, consisting of about 20,000 men. Gumbay Piang's Cotabato Moros used Bolo knives to fight the Japanese, and swore that they would "fight to the last". An oath was sworn by Alonto, the Sultan of Ramain, and 10,000 other Moros in Lanao that they would fight to drive the Japanese out, and sent in a message that said "We have prepared our bladed weapons because we lack firearms, and with sharp kris, barong, campilan, tabas and spear we will attack or defend as ordered," "and no mercy asked." Alonto said "all fighting men of Lanao would like to sign their names, but they are too many". They promised to fight to the death against the Japanese and "swore upon the Koran". The Japanese demanded that all the natives in the Philippines hand over any implement which was a weapon or could be utilized as a weapon, including Bolo knives, and the Japanese may have issued this order because of the Moro pledge to fight the Japanese since the Moros were skilled with bladed weapons. The American Captain Edward Kraus recommended Moro fighters for a suggested plan to capture an airbase in Lake Lanao for eventually driving the Japanese occupiers out of the Philippines.
Davao in Mindanao had a large population of Japanese immigrants who acted as a fifth column, welcoming the Japanese invaders during World War II. These Japanese were hated by the Moros and disliked by the Chinese. The Moros were judged as "fully capable of dealing with Japanese fifth columnists and invaders alike." The Moros were to fight the Japanese invaders when they landed at Davao on Mindanao. The Japanese went back to their ships at night to sleep since the Moros struck so much fear into them, even though the Moros were outnumbered by the Japanese.
It was reported that most of Mindanao was dominated by Moro, Filipino, and American guerilla forces during the Japanese occupation. The Moros had cleared the Japanese out from the Muslim areas of Mindanao six months before America returned to liberate the Philippines at the Battle of Leyte. The Moros then joined in on the battle to liberate the rest of Mindanao from the Japanese in 1945.
According to Nur Misuari's Moro National Liberation Front faction's website, the Japanese "exhibited tyranny, cruelty and inhumanity at its lowest level", and "had to suffer their worst defeat and highest death mortality at the hands of the Bangsamoro freedom fighters".
The Imperial Japanese Navy medic Akira Makino revealed that while he was stationed on Mindanao at Zamboanga from December 1944 to February 1945, he and other Japanese troops in his unit killed Moro Muslim prisoners by beheading or performed vivisections on them, cutting them open while they were alive to study their internal organs like their stomachs, and the Japanese also forced the Moros to dig their own graves.
When General MacArthur returned to the Philippines with his army in late 1944, he was well supplied with information; it is said that by the time MacArthur returned, he knew what every Japanese lieutenant ate for breakfast and where he had his hair cut. But the return was not easy. The Japanese Imperial General Staff decided to make the Philippines their final line of defense, and to stop the American advance toward Japan. They sent every available soldier, airplane, and naval vessel to the defense of the Philippines. The Kamikaze corps was created specifically to defend the Philippines. The Battle of Leyte Gulf ended in disaster for the Japanese and was the biggest naval battle of World War II. The campaign to re-take the Philippines was the bloodiest campaign of the Pacific War. Intelligence information gathered by the guerrillas averted a disaster—they revealed the plans of Japanese General Yamashita to trap MacArthur's army, and they led the liberating soldiers to the Japanese fortifications.
MacArthur's Allied forces landed on the island of Leyte on October 20, 1944, accompanied by Osmeña, who had succeeded to the commonwealth presidency upon the death of Quezon on August 1, 1944. Landings then followed on the island of Mindoro and around Lingayen Gulf on the west side of Luzon, and the push toward Manila was initiated. The Commonwealth of the Philippines was restored. Fighting was fierce, particularly in the mountains of northern Luzon, where Japanese troops had retreated, and in Manila, where they put up a last-ditch resistance. The Philippine Commonwealth troops and the recognized guerrilla fighter units rose up everywhere for the final offensive. Filipino guerrillas also played a large role during the liberation. One guerrilla unit came to substitute for a regularly constituted American division, and other guerrilla forces of battalion and regimental size supplemented the efforts of the U.S. Army units. Moreover, the loyal and willing Filipino population immeasurably eased the problems of supply, construction and civil administration and furthermore eased the task of Allied forces in recapturing the country.
Fighting continued until Japan's formal surrender on September 2, 1945. The Philippines had suffered great loss of life and tremendous physical destruction by the time the war was over. An estimated one million Filipinos had been killed from all causes; of these 131,028 were listed as killed in seventy-two war crime events. U.S. casualties were 10,380 dead and 36,550 wounded; Japanese dead were 255,795.
^Affidavit H18179, 6th Military District, Unit Number T-8, Province of Iloilo (for USAFFE Guerilla), dated 9 January 1946, signed at OTC, Sta. Barbara, Iloilo, Philippines by 2Lt Samuel L. Bell O-1329677, Summary Court Officer, US Processing Team No. 8. The document can be found in the Non-current Records of the Office of the Adjutant General of the Armed Forces of the Philippines, Camp General Emilio Aguinaldo, Quezon City.[unreliable source?]
Darangen: Epic of History. Volume 12 of "Land and people" series. Contributor Presidential Commission for the Rehabilitation and Development of Southern Philippines. Presidential Commission for the Rehabilitation and Development of Southern Philippines. 1980. Retrieved 10 March 2014.