Here's how the US pulled off a daring mission to take out the mastermind of the attack on Pearl Harbor
- The US campaign in the Pacific got off to a slow start after the attack on Pearl Harbor.
- But by spring 1943, US forces were in a position to go after the architect of the attack.
- The daring, high-risk mission was successful, but how it played out was unclear for decades.
The Japanese attack on the US Navy at Pearl Harbor on December 7, 1941, propelled the US into a war that had been raging for years.The US campaign had a mixed start. In April 1942, the success of the Doolittle Raid on Japan was leavened by the horrors of the Bataan Death March, during which thousands of US and Philippine soldiers died.
By February 1943, the US had secured Guadalcanal after the first major Allied offensive in the theater. From there, US forces were able to plot retribution for the attack that started it all.
(AP Photo/Robert Kradin)
On April 13, 1943, US naval intelligence intercepted a coded signal sent to Japanese commanders in the area around Bougainville, in the Solomon Islands northwest of Guadalcanal.The US had long since broke Japan's codes. The April 13 message was sent in a new variant, but US intelligence deciphered it in short order."On April 18 CINC Combined Fleet will visit RXZ, R-, and RXP in accordance with the following schedule..." the message began. Adm. Isokoru Yamamoto, commander in chief of Japan's Combined Fleet and planner of the Pearl Harbor attack, was visiting Japanese units in the Solomons.
The message revealed not only the trip but also the schedule, the planes - two Mitsubishi G4M "Betty" medium bombers escorted by six Zero fighters - that would be involved, the orders for commanders at Bougainville, and the recommended uniforms.
Yamamoto was one of the most charismatic and forward-thinking naval officers of his generation. He graduated from Japanese Naval Academy in 1904 and fought in the Russo-Japanese war, where he lost two fingers at the Battle of Tsushima in 1905. (AP Photo)
He went to the US in the 1920s, learning English and studying at Harvard and at the US Naval War College, where he learned about a new style of naval warfare fought with carrier and island-based planes.
He reformed Japan's navy and was highly regarded by sailors and the Japanese royal family. While he was no pacifist, he was part of a moderate faction within the navy.He criticized bellicosity from right-wing ultranationalists, scorned the army and its leaders who undercut civilian officials, and resisted an alliance with Nazi Germany. This earned him death threats.
As Japan's naval attache in Washington in the late 1920s, he traveled the US and witnessed its might."Anyone who has seen the auto factories in Detroit and the oil fields in Texas," he said later, "knows that Japan lacks the national power for a naval race with America."
He cautioned against a war with the US but took part in its planning and believed only a knockout blow could spare Japan a ruinous end. "We should do our best to decide the fate of the war on the very first day," he said.His plan for a surprise attack on Pearl Harbor was resisted, but he pushed it through, noting the irony of spearheading a mission he opposed. "Alas, is that fate?" he wrote to a friend.
Despite Yamamoto's reservations about the war, he became the face of the enemy after Pearl Harbor, appearing on the cover of Time magazine on December 22, 1941, under the headline "Japan's Aggressor."
If the name "Operation Vengeance" didn't illustrate US sentiment toward him, Pacific Fleet chief Adm. William "Bull" Halsey got the point across with the order, "TALLY HO X LET'S GET THE BASTARD."President Franklin Roosevelt is reputed to have told the Navy, "Get Yamamoto." (It's not clear he actually said that.) Adm. Chester Nimitz, the US commander in the Pacific, gave the go-ahead to shoot down Yamamoto's plane - a task assigned to the 339th Fighter Squadron.
But all the motivation didn't make the operation easier.Navy and Marine fighters didn't have the range to intercept Yamamoto and his escorts over Bougainville. The Army Air Force's twin-engine P-38G Lighting had the range to get there and the firepower to deal with the bombers and the fighters.
Four fighters, called the Killer Division, were to attack the bombers, one of which would be carrying Yamamoto. The rest would attack the fighter escorts.To avoid detection, planners wanted the P-38s to fly "at least 50 miles offshore of these islands, which meant dead-reckoning over 400 miles over water at fifty feet or less, a prodigious feat of navigation," according to a history of the 13th Fighter Command, of which the 339th Fighter Squadron was part.
They left Henderson Field early on April 18, 1943 - the first anniversary of the Doolittle Raid. The monotony of the long flight combined with the low altitude increased the risks. One pilot counted sharks to stay awake; he saw 48.
Despite lacking navigational aids, they got to Bougainville just as Yamamoto's convoy - the two bombers and six fighters 1,500 feet above them - flew into the area.
Twelve of the P-38s climbed to the Zeroes; the other four headed to the bombers, not sure which carried Yamamoto.
The US fighters split up and chased the bombers, shooting both down. One crashed into the jungle on Bougainville, killing all aboard - including Yamamoto. The other plunged into the ocean.Japanese troops on Bougainville eventually found the wreckage of Yamamoto's plane. The bodies on board were cremated and put in boxes that returned to Japan.
Yamamoto's death was kept secret for some time, but he was eventually given a state funeral.
The US planes, minus one downed during the operation, returned to Henderson Field around noon, with some running out of fuel as they touched down.While Yamamoto met his end on April 18, 1943, how it arrived was less clear.Capt. Thomas Lanphier, who led the four fighters targeting the Japanese bombers, and his wingman, 1st. Lt. Rex Barber, were both credited with a kill on the mission.
The Air Force reviewed records in the 1970s and reduced it to a half-kill each, but it remained unclear who had shot down the bomber carrying Yamamoto.
In 1998, a panel of the surviving US pilots and one Japanese Zero pilot considered eyewitness comments, reports from Barber and Lanphier, and an examination of the bomber that crashed on Bougainville.Fifty-five years after Yamamoto was sent crashing into the jungle, they concluded Barber had put him there.
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