1944 battle in the Pacific campaign of World War II
The Battle of Leyte (; ; ) in the Pacific campaign of World War II was the amphibious invasion of the island of Leyte in the Philippines by American forces and Filipino guerrillas under the overall command of General Douglas MacArthur, who fought against the Imperial Japanese Army in the Philippines led by General Tomoyuki Yamashita. The operation, codenamed "King Two", launched the Philippines campaign of 1944–45 for the recapture and liberation of the entire Philippine Archipelago and to end almost three years of Japanese occupation.
Background.
Japan had conquered the Philippines in 1942. Controlling it was vital for Japan's survival in World War II because it commanded sea routes to Borneo and Sumatra by which rubber and petroleum were shipped to Japan.
For the U.S., capturing the Philippines was a key strategic step in isolating Imperial Japan's military holdings in China and the Pacific theater. It was also a personal matter of pride for MacArthur. In 1942, just a month before Japan forced the surrender of all USAFFE forces in the Philippines, U.S. President Franklin D. Roosevelt had ordered MacArthur to leave the Philippines and organize the U.S. forces gathering in Australia, which were meant to relieve the USAFFE. Those relief forces were non-existent; Roosevelt's true intentions in ordering MacArthur to flee the Philippines had been to prevent his capture by the Japanese. Still, MacArthur had vowed that he would return to the Philippines. He repeatedly stated that it was a moral obligation of the U.S. to liberate the Philippines as soon as possible. In March 1944, the Joint Chiefs of Staff ordered MacArthur to plan an attack on the southern Philippines by the end of the year, and Luzon in early 1945. In July 1944, Roosevelt met with MacArthur and Chester Nimitz in Hawaii, where the decision was made to invade the Philippines, from which land air bases could be used for the Pacific Theater of Operations.
Over the summer of 1944, planes from the aircraft carriers of the U.S. 3rd Fleet under Admiral William F. Halsey carried out several successful missions over the Philippines and found Japanese resistance lacking. Halsey then recommended a direct strike on Leyte, canceling other planned operations, and the Leyte invasion date moved forward to October.
Leyte, one of the larger islands of the Philippines, has numerous deep-water approaches and sandy beaches which offered opportunities for amphibious assaults and fast resupply. The roads and lowlands extending inland from Highway 1, that ran for along the east coast between Abuyog town to the north and the San Juanico Strait between Leyte and Samar Islands, provided avenues for tank-infantry operations, as well as suitable ground for airfield construction. American air forces based on Leyte could strike at enemy bases and airfields anywhere in the archipelago.
A heavily forested north–south mountain range dominates the interior and separates two sizable valleys, or coastal plains. The larger Leyte Valley extends from the northern coast to the long eastern shore and contains most of the towns and roadways on the island. The other, Ormoc Valley, situated on the west side, was connected to Leyte Valley by a roundabout and winding road, Highway 2; it ran from Palo town on the east coast, then west and northwest through Leyte Valley to the north coast, it then turned south and wound through a mountainous neck to enter the northern Ormoc Valley. This continued south to the port of Ormoc City, then along the western shore to Baybay town. The road then turned east to cross the mountainous waist of the island and it connected with Highway 1 on the east coast at Abuyog. Below these towns, the mountainous southern third of Leyte was mostly undeveloped. High mountain peaks over , as well as the jagged outcroppings, ravines, and caves typical of volcanic islands offered formidable defensive opportunities. The timing late in the year of the assault would force combat troops and supporting pilots, as well as logistical units, to contend with monsoon rains.
Leyte's population of over 900,000 people—mostly farmers and fishermen—could be expected to assist an American invasion, since many residents already supported the guerrilla struggle against the Japanese in the face of harsh repression. Japanese troop strength on Leyte was estimated by U.S. intelligence at 20,000; mostly of the 16th Division under Lieutenant General Shiro Makino.
Opposing forces.
United States.
Southwest Pacific Area
General Douglas MacArthur in light cruiser "Nashville"
Ground forces.
 US Sixth Army ;br ;
Lieutenant General Walter Krueger ;br ;
Approx. 202,500 total officers and enlisted
 "Northern landing area"
 X Army Corps
 Lieutenant General Franklin C. Sibert
 Left: 24th Infantry ("Taro") Division 
 Right: 1st Cavalry Division 
 "Southern landing area"
 XXIV Army Corps
 Lieutenant General John R. Hodge
 Left: 7th Infantry ("Bayonet") Division 
 Right: 96th Infantry ("Deadeye") Division 
 Reserve: 11th Airborne ("Angels") Division
 "Reserves"
 Landed 14 Nov: 32nd Infantry ("Red Arrow") Division
 Landed 23 Nov: 77th Infantry ("Statue of Liberty") Division
Naval and air forces.
US Seventh Fleet
Vice Admiral Thomas C. Kinkaid in amphibious command ship "Wasatch"
 Central Philippines Attack Force (Task Force 77)
 Vice Admiral Kinkaid
 Northern Attack Force (Task Force 78)
 Rear Admiral Daniel E. Barbey in amphibious command ship "Blue Ridge"
 Embarking Maj. Gen. Franklin C. Sibert's X Army Corps
 Southern Attack Force (Task Force 79)
 Vice Admiral Theodore S. Wilkinson in amphibious command ship "Mount Olympus"
 Embarking Maj. Gen. John R. Hodge's XXIV Army Corps
Allied Air Forces
Lieutenant General George C. Kenney, USAAF
 Fifth Air Force
 Thirteenth Air Force
Japan.
Southern Army (Southeast Asia)
Field Marshal Count Hisaichi Terauchi at Manila
 Fourteenth Area Army
 General Tomoyuki Yamashita
 Thirty-Fifth Army
 Lieutenant General Sosaku Suzuki
 Leyte Defense Forces
 16th Division
 Lieutenant General Shiro Makino
 Air Forces
 Fourth Air Army at Manila
 IJN Fifth Base Air Force under on Formosa
Battle.
Landings.
Preliminary operations for the Leyte invasion began at dawn on 17 October 1944, with minesweeping tasks and the movement of the 6th Rangers toward three small islands in Leyte Gulf. Although delayed by a storm, the Rangers were on Suluan and Dinagat islands by 0805. On Suluan, they dispersed a small group of Japanese defenders and destroyed a radio station, while they found Dinagat unoccupied. The third island, Homonhon, was taken without any opposition the next day. On Dinagat and Homonhon, the Rangers proceeded to erect navigation lights for the amphibious transports to follow. Meanwhile, reconnaissance by underwater demolition teams revealed clear landing beaches for assault troops on Leyte. Independently, the 21st Infantry Regiment on 20 October landed on Panaon Strait to control the entrance to Sogod Bay.
Following four hours of heavy naval gunfire on A-day, 20 October, Sixth Army forces landed on assigned beaches at 10:00. X Corps pushed across a stretch of beach between Tacloban airfield and the Palo River. to the south, XXIV Corps units came ashore across a strand between San José and the Daguitan River. Troops found as much resistance from swampy terrain as from Japanese fire. Within an hour of landing, units in most sectors had secured beachheads deep enough to receive heavy vehicles and large amounts of supplies. Only in the 24th Division sector did enemy fire force a diversion of follow-up landing craft. But even that sector was secure enough by 13:30 to allow Gen. MacArthur to make a dramatic entrance through the surf onto Red Beach and announce to the populace the beginning of their liberation: "People of the Philippines, I have returned! By the grace of Almighty God, our forces stand again on Philippine soil."
By the end of A-day, the Sixth Army had moved inland and five miles wide. In the X Corps sector, the 1st Cavalry Division held Tacloban airfield, and the 24th Infantry Division had taken the high ground on Hill 522 commanding its beachheads. In the XXIV Corps sector, the 96th Infantry Division held the approaches to Catmon Hill, and the 7th Infantry Division held Dulag and its airfield.
General Makino spent the day moving his command post from Tacloban, inland to the town of Dagami. The initial fighting was won at a cost of 49 killed, 192 wounded, and six missing. The Japanese counterattacked the 24th Infantry Division on Red Beach through the night, unsuccessfully.
Campaign in the Leyte Valley.
The Sixth Army made steady progress inland against sporadic and uncoordinated enemy resistance on Leyte in the next few days. The 1st Cavalry Division of Maj. Gen. Verne D. Mudge secured the provincial capital, Tacloban, on 21 October, and Hill 215 the next. On 23 October, Gen. MacArthur presided over a ceremony to restore civil government to Leyte. 1st and 2nd Cavalry Brigades initiated a holding action to prevent a Japanese counterattack from the mountainous interior, after which the 1st Cavalry was allowed to move on. The 8th Cavalry established itself on Samar by 24 Oct, securing the San Juanico Strait.
On the X Corps left, the 24th Infantry Division under Maj. Gen. Frederick A. Irving, drove inland into heavy enemy resistance. After days and nights of hard fighting and killing some 800 Japanese, the 19th and 34th Infantry Regiments expanded their beachhead and took control of the high ground commanding the entrance to the northern Leyte Valley. By 1 November, after a seven-day tank-infantry advance supported by artillery fire, both regiments had pushed through Leyte Valley and were within sight of the north coast and the port of Carigara, which the 2nd Cavalry Brigade occupied the next day after Suzuki ordered a withdrawal. In its drive through Leyte Valley, the 24th Division inflicted nearly 3,000 enemy casualties. These advances left only one major port on Leyte—Ormoc City on the west coast—under Japanese control.
From the XXIV Corps beachhead Gen. Hodge had sent his two divisions into the southern Leyte Valley, which already contained four airfields and a large supply center. Maj. Gen. James L. Bradley's 96th Infantry Division was to clear Catmon Hill, a promontory, the highest point in both corps beachheads, and used by the Japanese as an observation and firing post to fire on landing craft approaching the beach on A-day. Under cover of incessant artillery and naval gunfire, Bradley's troops made their way through the swamps south and west of the high ground at Labiranan Head. After a three-day fight, the 382nd Infantry Regiment took a key Japanese supply base at Tabontabon, inland, and killed some 350 Japanese on 28 October. Simultaneously two battalions each from the 381st Infantry Regiment and 383rd Infantry Regiments slowly advanced up opposite sides of Catmon Hill and battled the fierce Japanese resistance. When the mop-up of Catmon Hill was completed on 31 October, the Americans had cleared 53 pillboxes, 17 caves, and several heavy artillery positions.
On the left of XXIV Corps, the 7th Infantry Division under Maj. Gen. Archibald V. Arnold moved inland against the Japanese airfields of San Pablo 1 and 2, Bayug, and Buri, using "flying wedges" of American tanks, the 767th Tank Battalion, which cleared the way for the infantrymen. Between Burauen and Julita, the 17th Infantry overcame fanatical but futile resistance from Japanese soldiers concealed in spider holes, who placed satchel charges on the hulls of the American tanks. A mile north, 32nd Infantry soldiers killed more than 400 Japanese at Buri airfield. While two battalions of the 184th Infantry patrolled the corps' left flank, the 17th Infantry, with the 184th's 2nd Battalion attached, turned north toward Dagami, above Burauen. Using flamethrowers to root the enemy out of pillboxes and a cemetery, US troops captured Dagami on 30 October, which forced Gen. Makino to evacuate his command post further westward. Meanwhile, on 29 October, the 32nd Infantry's 2nd Battalion, preceded by the 7th Cavalry Reconnaissance Troop, moved south along the east coast to Abuyog for a probe of the area, and then over the next four days patrolled west through the mountains to Baybay, all without opposition.
Japanese counterattacks.
With 432,000 Japanese soldiers in the Philippines, General Yamashita decided to make Leyte the main effort of the Japanese defense, and on 21 October, ordered the 35th Army to coordinate a decisive battle with the Imperial Japanese Navy. The 16th Division was to be reinforced by the 30th Infantry Division from Mindanao, landing on Ormoc Bay. The 102nd Infantry Division would occupy Jaro, where the 1st and 26th Infantry Divisions were concentrating. Battalions from the 55th and 57th Independent Mixed Brigades were on Leyte by 25 Oct.
As the Sixth Army pushed deeper into Leyte, the Japanese struck back in the air and at sea. On 24 October, some 200 enemy aircraft approached American beachheads and shipping from the north. Fifty American land-based aircraft rose to intercept them, and claimed to have shot down between 66 and 84 of the attackers. Day and night air raids continued over the next