Why did Americans feel deceived by the Japanese In world war 2?

Americans felt deceived by the Japanese during World War II primarily due to the surprise attack on Pearl Harbor on December 7, 1941, which occurred while diplomatic negotiations were ongoing. Many believed that Japan was engaging in talks in good faith, only to launch a devastating military strike that caught the U.S. off guard. This betrayal intensified anti-Japanese sentiment and fueled a sense of anger and mistrust among the American public. The attack ultimately united the nation in its resolve to enter the war against Japan and its allies.