imperialism. He even led the drive to censure Saitō Takao and expel him from the Social Masses Party following the latter's anti-war speech on the floor of the Diet in 1940. However, Asanuma himself decided not to run for reelection in 1942, following his failure to secure a "recommendation" from the Imperial Rule Assistance Association. In the immediate aftermath of Japan's defeat in World War II, Asanuma was one of the founders of the Japan Socialist Party (JSP), and would eventually rise to become its secretary-general (1955-1960) and eventually, party chairman (1960). As a politician, Asanuma cultivated an "everyman" image. He lived modestly in public housing his entire life, and was particularly popular among ordinary laborers, small shopkeepers, and other members of the working class. In contrast to his pro-war stance during World War II, in the postwar period, Asanuma spearheaded the JSP's staunch opposition to revising Article 9 of Japan's postwar constitution and remilitarizing Japan. However, historian Andrew Gordon argues that Asanuma was consistent in his antipathy to western imperialism and a desire for Asia to chart its own course in world affairs. In 1959, Asanuma was widely criticized for an incident in which he visited the People's Republic of China and called American imperialism "the shared enemy of China and Japan" during a speech in front of the Chinese Communist Party in Beijing. When he returned from this trip he wore a Mao suit while disembarking from a plane in Japan, sparking criticism even from Socialist leaders. At this time, Japan, its ally the United States, and many other countries recognized the Republic of China as the legitimate government of China. Under Asanuma's leadership, the JSP played a leading role in the massive Anpo protests against revision of the U.S.-Japan Security Treaty in 1960, which also led to the resignation of prime minister Nobusuke Kishi, angering rightists and ultranationalists who supported the treaty. Assassination On 12 October 1960, Asanuma was assassinated by 17-year-old Otoya Yamaguchi, a right-wing ultranationalist, during a televised political debate ahead of upcoming elections for the House of Representatives. While Asanuma spoke from the lectern at Tokyo's Hibiya Hall, Yamaguchi rushed onstage and ran his wakizashi (a traditional samurai short sword) through Asanuma's ribs on the left side, fatally wounding him. Japanese television company NHK was videorecording the debate for later transmission and the tape of Asanuma's assassination was shown many times to millions of