3/11/2012 - A crowd of more than 200 American and Japanese people participated in the 15th Annual Baby Salmon release at Oirase Salmon Park in Oirase Town, Japan March 10, 2012. Misawa Air Base residents and the local community worked together to release more than three million baby salmon into the Oirase River. (U.S. Air Force photo by Tech. Sgt. Marie Brown/Released)

3/11/2012 - Children from Misawa Air Base release salmon into the Oirase River at Oirase Salmon Park in Oirase Town, Japan, March 10, 2012. More than three million salmon were released into the river and will travel to the ocean to begin a four-year journey. (U.S. Air Force photo by Tech. Sgt. Marie Brown/Released)

3/11/2012 - Children from local Japanese communities release baby salmon into the Oirase River at Oirase Salmon Park in Oirase Town, Japan, March 10, 2012. More than 200 participants from Misawa Air Base and the local communities participated in this year's event, which was part of Earth Day 2012. (U.S. Air Force photo by Tech. Sgt. Marie Brown/Released)

3/11/2012 - Community members from Misawa Air Base, Japan and Japanese citizens help release more than 3 million baby salmon into the Oirase River March 10, 2012 as a contribution to upcoming Earth Day, which inspires awareness and appreciation for the Earth's natural environment. The event was sponsored by the Oirase Town office, Misawa AB and the Japan Agriculture Oriase branch. The salmon begin a four-year journey, migrating to the ocean while spawning and should eventually make their way back to the Oriase River. (U.S. Air Force photo by Senior Airman Jess Lockoski)

3/11/2012 - Hundreds of children from the local Japanese community and children from Misawa Air Base, Japan gather along the bank of the Oirase River to release more than 3 million baby salmon March 10, 2012 as a contribution to upcoming Earth Day, which inspires awareness and appreciation for the Earth's natural environment. The event was sponsored by the Oirase Town Office, Misawa AB and the Japan Agriculture Oirase branch. (U.S. Air Force photo by Senior Airman Jess Lockoski/Released)

3/11/2012 - Children from Misawa Air Base, Japan and Japanese children help release more than 3 million baby salmon into the Oirase River March 10, 2012 as a contribution to upcoming Earth Day, which inspires awareness and appreciation for the Earth's natural environment. The event was sponsored by the Oirase Town Office, Misawa AB and the Japan Agriculture Oirase branch. The salmon begin a four-year journey, migrating to the ocean while spawning and should eventually make their way back to the Oirase River. (U.S. Air Force photo by Senior Airman Jess Lockoski/Released)