Cal Ripken Jr. has arrived in Japan, where he's participating in a diplomatic mission from through Nov. 16. Ripken, who serves as a U.S. Public Diplomacy Envoy, was feted at a reception at the U.S. Embassy, where he learned more about Tomodachi, a joint initiative between the United States and Japan to help the victims of March's earthquake and tsunami in Japan. In Japanese, Tomodachi means "friend." You can read Ripken's written blog here. Here's a video segment detailing Ripken's first day in Japan: