ポーツマス条約
In 1905, Tojo shared in the general outrage in Japan at the Treaty of Portsmouth, which ended the war with Russia, and which the Japanese people saw as a betrayal as the war did not end with Japan annexing Siberia as popular opinion had demanded. The Treaty of Portsmouth was so unpopular that it set off anti-American riots known as the Hibiya incendiary incident as many Japanese were enraged at the way the Americans had apparently cheated Japan as the Japanese gains in the treaty were far less than what public opinion had expected. Very few Japanese at the time had understood that the war with Russia had pushed their nation to the verge of bankruptcy, and most people in Japan believed that the American president Theodore Roosevelt who had mediated the Treaty of Portsmouth had cheated Japan out of its rightful gains. Tojo's anger at the Treaty of Portsmouth left him with an abiding dislike of Americans. In 1909, Hideki married Katsuko Ito, with whom he had three sons (Hidetake, Teruo, and Toshio) and four daughters (Mitsue, Makie, Sachie and Kimie).