Diệm applied for permission to travel to Rome for the Holy Year celebrations at the Vatican. After gaining French permission, he left in August 1950 with his older brother, Bishop Ngô Đình Thục. Before going to Europe, Diệm went to Japan, where he met with Prince Cường Để, his former ally, and discussed Cường Để's efforts to return to Vietnam and his capacity to play some roles in his homeland. Diệm's friend also managed to organize a meeting between him and Wesley Fishel, an American political science professor at the University of California, who was working for the CIA in Japan. Fishel was a proponent of the anti-colonial, anti-communist third force doctrine in Asia and was impressed with Diệm and helped him organize connections in the United States. In 1951, Diệm flew to the United States to seek the support of government officials. Nevertheless, Diệm was not successful in winning US support for Vietnamese anti-communists.