Operation Ichi-Go (一号作戦 Ichi-gō Sakusen, lit. "Operation Number One") was a campaign of a series of major battles between the Imperial Japanese Army forces and the National Revolutionary Army of the Republic of China, fought from April to December 1944. It consisted of three separate battles in the Chinese provinces of Henan, Hunan and Guangxi.
These battles were the Japanese Operation Kogo or Battle of Central Henan, Operation Togo 1 or the Battle of Changheng, and Operation Togo 2 and Togo 3, or the Battle of Guilin-Liuzhou, respectively. The two primary goals of Ichi-go were to open a land route to French Indochina, and capture air bases in southeast China from which American bombers were attacking the Japanese homeland and shipping.
In Japanese the operation was also called Tairiku Datsū Sakusen (大陸打通作戦), or "Continent Cross-Through Operation", while the Chinese refer to it as the Battle of Henan-Hunan-Guangxi (simplified Chinese: 豫湘桂会战; traditional Chinese: 豫湘桂會戰; pinyin: Yù Xīang Guì Huìzhàn).
Course of the campaign
There were two phases to the operation. In the first phase, the Japanese secured the Pinghan Railway between Beijing and Wuhan; in the second, they eliminated the US air forces stationed in Hunan province and reached the city of Liuzhou, near the border with Japanese-held Indochina. 17 divisions, including 400,000 men, 12,000 vehicles, 1,500 artillery pieces, 800 tanks and 70,000 horses participated in this operation.
The Japanese included crack Kwantung Army units and equipment from Manchukuo, mechanized units, units from the North China theater and units from mainland Japan to participate in this campaign. It was the largest land campaign organized by the Japanese during the entire Second Sino-Japanese War. Many of the newest American-trained Chinese units and supplies were forcibly locked in the Burmese theater under Joseph Stilwell set by terms of the Lend-Lease Agreement.
In the Operation Kogo, 390,000 Chinese soldiers, led by General Tang Enbo (湯恩伯), were deployed to defend the strategic position of Luoyang. The 3rd Tank Division of the IJA crossed the Yellow River around Zhengzhou in late April and defeated Chinese forces near Xuchang, then swung around clockwise and besieged Luoyang. Luoyang was defended by three Chinese divisions. The 3rd Tank Division began to attack Luoyang on May 13 and took it on May 25.
The second phase of Ichigo began in May, following the success of the first phase. Japanese forces advanced southward and occupied Changsha, Hengyang, Guilin and Liuzhou. In December 1944, Japanese forces reached French Indochina and achieved the purpose of the operation. Nevertheless, there were few practical gains from this offensive. US air forces moved inland from the threatened bases near the coast. The operation also forced British Commandos working with the Chinese as part of Mission 204 to leave China and return to Burma. The U.S. Fourteenth Air Force often disrupted the Hunan–Guangxi Railway between Hengyang and Liuzhou that had been established in Operation Ichigo. Japan continued to attack airfields where US air forces were stationed up to the spring of 1945.
The XX Bomber Command operating Strategic B-29 bombers of the Twentieth Air Force, which were attacking Japan in Operation Matterhorn, were forced to move as well, but although this affected their efficiency for a short time, in early 1945 the Twentieth Air Force moved to newly established bases in the Marianas under the command of the newly established XXI Bomber Command. This nullified the limited protection that the Japanese home islands had received from Operation Ichigo.
With the rapid deterioration of the Chinese front after Japanese launched Operation Ichi-Go in 1944, General Joseph Stilwell saw this as an opportunity to win his political struggle against Chiang Kai-shek and gain full command of all Chinese armed forces. He was able to convince General George Marshall to have President Franklin D. Roosevelt send an ultimatum to Chiang threatening to end all American aid unless Chiang "at once" placed Stilwell "in unrestricted command of all your forces."
An exultant Stilwell immediately delivered this letter to Chiang despite pleas from Patrick Hurley, Roosevelt's special envoy in China, to delay delivering the message and work on a deal that would achieve Stilwell's aim in a manner more acceptable to Chiang. Seeing this act as a move toward the complete subjugation of China, a defiant Chiang gave a formal reply in which he said that Stilwell must be replaced immediately and he would welcome any other qualified U.S. general to fill Stilwell's position. As a result Stilwell was replaced as Chief of Staff to Chiang Kai-Shek and commander of the U.S. Forces, China Theater (USFCT) by Major General Albert Wedemeyer. His other command responsibilities in the China Burma India Theater were divided up and allocated to other officers.
Although Chiang was successful in removing Stilwell, the public relations damage suffered by his Kuomintang regime was irreparable. Right before Stilwell's departure, New York Times drama critic-turned-war correspondent Brooks Atkinson interviewed him in Chungking and wrote: "The decision to relieve General Stilwell represents the political triumph of a moribund, anti-democratic regime that is more concerned with maintaining its political supremacy than in driving the Japanese out of China. The Chinese Communists... have good armies that they are claiming to be fighting guerrilla warfare against the Japanese in North China—actually they are covertly or even overtly building themselves up to fight Generalissimo's government forces... The Generalissimo naturally regards these armies as the chief threat to the country and his supremacy... has seen no need to make sincere attempt to arrange at least a truce with them for the duration of the war... No diplomatic genius could have overcome the Generalissimo's basic unwillingness to risk his armies in battle with the Japanese."
This devastating loss coupled with the negative public opinion in the U.S. that followed caused the U.S. to lose confidence in the Chinese troops' ability to fight the Japanese, and subsequently the China-Burma-India Theatre lost its priority. Instead the U.S. focused all its resources on the island-hopping offensive in the Pacific.
The Japanese successes in Operation Ichi-Go had limited effect on the war. The U.S. could still bomb the Japanese homeland from Saipan and other pacific bases. The Japanese forces could only control the cities but not their surrounding countryside. The increased size of the occupied territory also thinned out the Japanese lines. A great majority of the Chinese forces were able to retreat out of the area, and later come back to attack Japanese positions. As a result future Japanese attempts to fight into Sichuan, such as in the Battle of West Hunan, ended in failure. All in all Japan was not any closer in defeating China after this operation, and the constant defeats the Japanese suffered in the Pacific meant that Japan never got the time and resources needed to achieve final victory over China.
The Mountain Road, by Theodore White, Time Magazine correspondent in China at the time, deals with a demolition group of American soldiers retreating before this Japanese offensive, charged with blowing up anything that might be of use to Japan.
Operation Ichi-go created a great sense of social confusion in the areas of China that it affected. Chinese Communist guerrillas were able to exploit this confusion to gain influence and control of greater areas of the countryside in the aftermath of Ichi-go.
- Davison, John The Pacific War: Day By Day, pg. 37, 106
- The U.S. Army Campaigns of World War II: China Defensive, pg. 21
- Romanus and Sunderland, Stilwell's Command Problem, p.446-447
- Lohbeck, Hurley, p.292
- Lohbeck, Hurley, p.298
- Romanus and Sunderland, Stilwell's Command Problem, p.452
- "Crisis". Time magazine quoting the New York Times. 1944-11-13. http://www.time.com/time/magazine/article/0,9171,801570-4,00.html. Retrieved 2007-03-02.
- China at War: An Encyclopedia. Ed. Li Xiaobing. United States of America: ABC-CLIO. 2012. ISBN 978-1-59884-415-3. Retrieved May 21, 2012. p.163.
- Sherry, Mark D.. China Defensive. The U.S. Army Campaigns of World War II. United States Army Center of Military History. CMH Pub 72-38. http://www.history.army.mil/brochures/72-38/72-38.HTM.
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