Born to a ''samurai'' family in the Chōshū Domain, Tanaka became an officer in the Imperial Japanese Army and rose through the ranks. He served as Minister of the Army under Prime Ministers Hara Takashi and Yamamoto Gonnohyōe. After retiring from active duty he accepted the presidency of the Rikken Seiyūkai, a major conservative party. Following the resignation of the Wakatsuki Cabinet in 1927, Tanaka was appointed Prime Minister. In foreign affairs, he pursued a hawkish policy; in domestic affairs, he sought to suppress communist movements. Criticised for his handling of the unauthorised assassination of Zhang Zuolin by elements of the Kwangtung Army, he resigned in 1929 and died soon afterwards.
