The Security Treaty crisis significantly damaged U.S.-Japan relations. The anti-American aspect of the protests and the humiliating cancellation of Eisenhower's visit brought US-Japan relations to their lowest ebb since the end of World War II. In the aftermath of the protests, incoming U.S. president John F. Kennedy and new Japanese prime minister Hayato Ikeda worked to repair the damage. Kennedy appointed sympathetic Japan expert and Harvard University professor Edwin O. Reischauer as ambassador to Japan, rather than a career diplomat. Kennedy and Reischauer promoted a shift in policy toward Japan, encapsulated by the slogan "equal partnership." Kennedy and Ikeda also arranged to have a summit meeting in Washington D.C. in 1961, with Ikeda becoming first foreign leader to visit the United States during Kennedy's term in office. At the summit, Kennedy promised Ikeda he would henceforth treat Japan more like a close ally such as Great Britain.