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Lt. Yukio Seki in flightgear.

Yukio Seki (関行男, 1921 - October 25, 1944) was a Japanese naval aviator of the Imperial Japanese Navy during World War II. As a Kamikaze pilot Lieutenant Seki led one of the three fighter groups of the second official Kamikaze attack in World War II (the first official attack was led by Yoshiyasu Kuno on 21 October 1944, unsuccessfully). Seki’s final action took place on October 25, 1944, during the Battle of Leyte Gulf. He led a unit of five bomb-armed Mitsubishi Zero fighters, crash-diving their planes deliberately into U.S. warships, being the first Kamikazes to sink an enemy ship.


Early life

Yukio Seki was born 1921 in Iyo Saijo, a small town in Shikoku. His parents ran an antiques store specializing in tea ceremony utensils. At an early age, Seki was exposed to Naval training courses at his middle school and planned a career in the Navy. Since naval personnel were fully prepared to die in battle, and since Yukio was an only child, the family adopted a daughter nearly Yukio's age to carry with the family affairs.

In 1938 he tried to get to the War Academy of both the Imperial Navy and the ground forces. He was accepted to both of them and he chose navy, attending the Japanese Naval Academy at Eta-Jima. During this time his father died and his mother closed the antiques shop and lived alone. In 1941, one month before the Pearl harbor attack, Seki graduated and was ordered to the Battleship Fusō. In June of the same year he was promoted Lieutenant. Soon he was transferred to the seaplane carrier Chitose.[1]

Service in World War Two

Seki saw several naval actions, and participated in a minor role in the battle of Midway as his ship, Chitose, belonged to the second wave of Japanese ships.

In 1942 Seki returned to Japan and enrolled in the Naval flying academy in Kasumigaura, Ibaraki. After basic training he was transferred to Usa, Oita to be trained as a dive bomber operating from carriers. In January 1944 he became instructor in Kasumigaura. Seki became friends with Watanabe family living in Kamakura and fell in love with their daughter Mariko. Once when he was out drinking with his colleagues one of them suggested that all of them should get married on the same day. They all agreed. The same weekend Seki went to Kamakura and proposed Mariko while her mother was present. Mariko accepted the proposal and they were married May 31, 1944. Seki's mother Sekae was the only relative from his side to take part to the wedding. After the wedding she lived with the young couple for a month and then left saying "Young couples need some time alone". Soon after they moved into a house close to the flying academy.

In September 1944 Seki was transferred to Tainan, city in Taiwan. He had to leave his wife behind, because Tainan wasn't safe enough. Mariko followed Seki to Yokohama to say goodbye to him. Three weeks after he had arrived to Tainan, he was transferred again, this time to the 201st flotilla in Philippines, as leader of 301st fighter unit. Their base originally was in Nicholas, but was later moved to Mabalacat away from increasing attacks by the Americans.

During this time Vice Admiral Takijiro Onishi had been making plans for the first Kamikaze attack, and Lieutenant Seki was given the opportunity by group commander Asaiki Tamai to lead a special attack squadron that would end in his own life. Seki is said to have closed his eyes, lowered his head and thought for ten seconds, before saying to Tamai: "Please do appoint me to the post." [2] Seki thereby became the leader of the squadron "Shikishima" which conducted the first official Kamikaze attack, and the first to sink an enemy ship. Four times his group returned to base in aborted sorties.


The Kamikaze attack on Taffy 3

Tamai offering ceremonial toast of water to Seki
Near miss on USS White Plains.
St. Lo's magazine detonates after Seki's attack

On October 25, 1944, Lt. Seki's squadron of 5 kamikaze A6M2 Model 21 Zeros [3], each carrying a 250 kg (550-pound) bomb, took off with an escort of 4 A6M5's flown by legendary ace Hiroyoshi Nishizawa, Misao Sugawa, Shingo Honda and Ryoji Baba.[4] Their target was Vice admiral Clifton Sprague's "Taffy 3" Task force during their desperate defence of the landings in the Battle of Leyte Gulf. At 1050, Seki's squadron made their attack on four escort carriers of Taffy 3:

  • USS White Plains (CVE-66): Two planes attack. AA fire scored a hit on one attacker who changed course for St. Lo. The Second plane was destroyed by AA fire just yards astern of White Plains. No hit on White Plains, but debris was scattered on the aft deck causing 11 minor injuries.
  • USS Kalinin Bay (CVE-68): Four diving planes attack from astern. Two planes are splashed by AA fire. Two hits by the others. One crashes into the port side of the flight deck, damaging it badly. The other hits the aft port stack, destroying it.
  • USS Kitkun Bay (CVE-71)- Port Catwalk clipped and aircraft explodes off the port side, causing one death and no significant damage.
  • USS St. Lo (CVE-63): The plane which veared off from White Plains approaches St. Lo, and her action report states "Approaching the ramp at very high speed, the 'Zeke 52' crossed over the aft end of the ship at less than fifty feet. He appeared to push over sufficiently to hit the deck at about the 'number 5 wire', fifteen feet to the port side of the center line. A tremendous crash followed quickly followed by an explosion as one or both of the enemy's bombs exploded. The aircraft continued up the deck leaving fragments strewed about and its remanents went over the bow." At first, the damage appeared minor. "There was a hole in the flight deck with smoldering edges which sprang into flame. Hoses were immediately run out from both sides of the flight deck and water started on the fire....smoke soon appeared on both sides of the ship, evidently coming from the hangar. Within one to one and one-half minutes an explosion occurred on the hangar deck, which puffed smoke and flame through the hole in the deck and bulged the flight deck near and aft of the hole. This was followed in a matter of seconds by a much more violent explosion, which rolled back a part of the flight deck bursting through aft of the original hole. The next heavy explosion tore out more of the flight deck and also blew the forward elevator out of its shaft." The magazine had detonated, and St. Lo was gone in a half hour.[5]

According to the US Navy reports, there were no other kamikaze hits on US ships that day, although there was a "suicide" near miss on the Kitkun Bay which was destroyed by AA fire from the Kitkun Bay. Since this was at 1120- nearly one half hour later after Seki's attack, and because all 5 of Seki's Kamikazes were apparently expended, and because the attacking plane was a non kamikaze type Yokosuka D4Y dive bomber, it is unlikely this was a member of Seki's group.


Seki's unit taking off October 25, 1944 (A6M2, 301st Hikotaki, 201st Kokutai, Shikishima-Tai)

Did Seki's plane sink the St. Lo? Nishizawa survived the attack and made his report stating that Seki's plane glanced off the deck of a carrier but that the bomb did not explode. This is related in the Japanese wiki article on Seki. His description on this point closely matches the attack on St. Lo as reported by her captain. However, the article also states that a second plane did score a hit on the same carrier that Seki attacked and that plane's bomb did explode. The only carrier with two hits was the Kalinin Bay. However, the description is sharply different, since there was an immediate visibly large explosion following the first hit on the Kalinin, and no portions of the plane were seen to go over the bow. So Nishizawa's description of Seki's hit most closely matches that on the St. Lo.

Prior to Seki's mission, Masashi Onoda, a Domei war correspondent interviewed Yukio Seki and quotes him disparaging suicide attacks. "Japan's future is bleak if it is forced to kill one of its best pilots. I am not going on this mission for the Emperor or for the Empire... I am going because I was ordered to!" [6] In this interview, he gives insight into his thinking on how the carrier force should be attacked. "If they would let me, I could drop a 500 kilogram bomb on the flight deck of a carrier without going in for body-crashing and still make my way back." [7] During his flight, his commanders heard him say "It is better to die, rather than to live as a coward."

Whichever pilot actually sank the St. Lo did so by releasing his bomb onto the flight deck just as Seki described to the reporter, instead of crashing his plane directly onto the deck. The reports of the attack are consistent with that of a pilot who intended to return to base after successfully sinking the St. Lo.

See also


  1. ^ "The Sacred Warriors: Japan’s Suicide Legions", Early life details corroborated on pages 45-48.
  2. ^ The Japanese Navy in World War II (Chapter 13: The Kamikaze), by Rikihei Inoguchi and Tadashi Nakajima, p 424, ISBN 0-87021-316-4
  3. ^ Mitsubishi Zero A6M2 Model 21
  4. ^ TheHistoryNet
  5. ^ The Battle off Samar
  6. ^ "Kamikaze - Japan's Suicide Gods", Page 16, written by Albert Axell, an American writer and Hideaki Kase, living in Tokyo. ISBN 951-0-30973-7
  7. ^ "The Sacred Warriors: Japan’s suicide Legions", Page 89.


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