During a March 19, 2026, White House meeting with Japanese Prime Minister Sanae Takaichi, President Donald Trump referenced Japan's 1941 Pearl Harbor attack while explaining why the US did not inform allies before a joint US-Israel operation against Iran, emphasizing the element of surprise. The exchange occurred amid warm personal interactions, including Takaichi hugging Trump upon arrival and laughing at a Hall of Presidents display.
On Thursday, March 19, 2026, Japanese Prime Minister Sanae Takaichi visited the White House—the first US ally leader to do so since President Trump requested help patrolling the Strait of Hormuz. Upon her arrival, she reportedly ran up to hug Trump and laughed when he showed her the Hall of Presidents display near the Rose Garden, particularly noting Joe Biden's picture as an auto pen signature. The warm rapport echoed Trump's strong relations with former Japanese Prime Minister Shinzo Abe, described by sources as 'like white on rice.'
In the Oval Office, amid reporters' questions about the joint US-Israel attack on Iran, a reporter asked: “Why didn’t you tell U.S. allies in Europe and Asia, like Japan, about the war before attacking Iran? So we are very confused about — we, Japanese citizens—” Trump replied: “Well, one thing, you don’t want to signal too much... we went in very hard, and we didn’t tell anybody about it because we wanted surprise. Who knows better about surprise than Japan? Why didn’t you tell me about Pearl Harbor? Okay? Right?” Prime Minister Takaichi appeared slightly uncomfortable as several in the room laughed. Trump added: “He’s asking me — no, you believe in surprise I think much more so than us... Because of that surprise, we knocked out — the first two days, we probably knocked out 50% of what we — and much more than we anticipated.”
The exchange occurred under the shadow of the Iran conflict, where Trump later said the US does not need allied ships. Takaichi has no plans to dispatch warships but told lawmakers she would “clearly explain what we can do and cannot do based on the Japanese law.” Japan's constitution renounces war, with 2015 legislation allowing collective self-defense in survival-threatening situations. She declined to judge the US-Israeli attack's legality. A poll by The Asahi Shimbun showed 82% of Japanese oppose the war, with over half dissatisfied with Takaichi's reluctance to discuss it. Historical precedents include Japan sending minesweepers to the Persian Gulf in 1991 and troops to Iraq in 2004, avoiding combat zones.