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TOKYO - OCTOBER 5: Soldiers from the East Area Division of Japan's Self Defence Forces stand to attention during the annual inspection parade at the Asaka Training Ground on October 5, 2003 in Tokyo, Japan. The Japanese Parliament is currently discussing the deployment of troops to Iraq. (Photo by Junko Kimura/Getty Images)

TOKYO - OCTOBER 5:  Soldiers from the East Area Division of Japan's Self Defence Forces stand to attention during the annual inspection parade at the Asaka Training Ground on October 5, 2003 in Tokyo, Japan.  The Japanese Parliament is currently discussing the deployment of troops to Iraq. (Photo by Junko Kimura/Getty Images)

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ASAKA, JAPAN - OCTOBER 23: Japanese Prime Minister Shinzo Abe, center right, inspects troops of the Self Defense Forces during the annual review at the Japan Ground Self-Defense Force Camp Asaka on October 23, 2016 in Asaka, Japan. (Photo by Tomohiro Ohsumi/Getty Images)

ASAKA, JAPAN - OCTOBER 23:  Japanese Prime Minister Shinzo Abe, center right, inspects troops of the Self Defense Forces during the annual review at the Japan Ground Self-Defense Force Camp Asaka on October 23, 2016 in Asaka, Japan.  (Photo by Tomohiro Ohsumi/Getty Images)

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NANJING, CHINA - JULY 31: (CHINA OUT) Extras dressed as Japanese soldiers, arrange properties before to shoot director Simon West's movie 'Purple Mountain' July 31, 2007 in Nanjing of Jiangsu Province, China. The movie, named after the Purple Mountain in Nanjing's southeast and adapted from Iris Chang's book, 'The Rape of Nanking', starts shooting to mark the 70th anniversary of the Nanjing massacre. Between December 1937 and March 1938, at least 300,000 Chinese civilians and prisoners of war were slaughtered by the invading Japanese troops. An estimated 80,000 women and girls were raped, many of them were then mutilated or murdered. (Photo by China Photos/Getty Images)

NANJING, CHINA - JULY 31: (CHINA OUT) Extras dressed as Japanese soldiers, arrange properties before to shoot director Simon West's movie 'Purple Mountain' July 31, 2007 in Nanjing of Jiangsu Province, China. The movie, named after the Purple Mountain in Nanjing's southeast and adapted from Iris Chang's book, 'The Rape of Nanking', starts shooting to mark the 70th anniversary of the Nanjing massacre. Between December 1937 and March 1938, at least 300,000 Chinese civilians and prisoners of war were slaughtered by the invading Japanese troops. An estimated 80,000 women and girls were raped, many of them were then mutilated or murdered. (Photo by China Photos/Getty Images)

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Soldiers of Japanese Ground Self-Defense Force (JGSDF), the brand-new Marinesnamed The Amphibious Rapid Deployment Brigade attend a ceremony in Camp Ainoura in Sasebo, Nagasaki Prefecture, Japan on April 7, 2018, as Japan seeks to expand the the military defend against North Korea's nuclear and missile programs and China's maritime assertiveness over theSenkaku Islands. The launch of the Ground Component Command to provide unified command over regional armies and the Amphibious Rapid Deployment Brigade, Japan's version of the U.S. Marines. (Photo by Richard Atrero de Guzman/NurPhoto via Getty Images)

Soldiers of Japanese Ground Self-Defense Force (JGSDF), the  brand-new Marinesnamed The Amphibious Rapid Deployment Brigade attend a ceremony in Camp Ainoura in Sasebo, Nagasaki Prefecture, Japan on April 7, 2018, as Japan seeks to expand the the military defend against North Korea's nuclear and missile programs and China's maritime assertiveness over theSenkaku Islands. The launch of the Ground Component Command to provide unified command over regional armies and the Amphibious Rapid Deployment Brigade, Japan's version of the U.S. Marines. (Photo by Richard Atrero de Guzman/NurPhoto via Getty Images)

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JUBA, SOUTH SUDAN - NOVEMBER 21: Japanese 63th troop personnel arrive at Juba airport to take part in U.N. peacekeeping activities including rescue operations, in Juba, South Sudan on November 21, 2016. The mission begins with the deployment of 350 troops in South Sudan for U.N. peacekeeping operations as it's their first overseas fighting since World War Two. (Photo by Bruno Bierrenbach Feder/Anadolu Agency/Getty Images)

JUBA, SOUTH SUDAN - NOVEMBER 21: Japanese 63th troop personnel arrive at Juba airport to take part in U.N. peacekeeping activities including rescue operations, in Juba, South Sudan on November 21, 2016. The mission begins with the deployment of 350 troops in South Sudan for U.N. peacekeeping operations as it's their first overseas fighting since World War Two. (Photo by Bruno Bierrenbach Feder/Anadolu Agency/Getty Images)