When was a declaration of war on the United States printed in Japanese newspapers ?
In 1999 , however , Takeo Iguchi , a professor of law and international relations at International Christian University in Tokyo , discovered documents that pointed to a vigorous debate inside the government over how , and indeed whether , to notify Washington of Japan 's intention to break off negotiations and start a war , including a December 7 entry in the war diary saying , " our deceptive diplomacy is steadily proceeding toward success . "