The Ticonderoga-class guided-missile cruiser USS Chancellorsville was one of the 25 Navy or Military Sealift Command ships that took part in Operation Tomodachi
Operation Tomodachi
Sailors aboard the aircraft carrier USS Ronald Reagan monitor countermeasure wash down system sprinklers on the flight deck
A sailor aboard the aircraft carrier USS Ronald Reagan washes an F/A-18C Hornet during Operation Tomodachi in March 2011
A U.S. sailor loads humanitarian assistance supplies onto an SH-60F Sea Hawk aboard the aircraft carrier USS Ronald Reagan on March 21,2011
Sailors scrub the flight deck aboard the aircraft carrier USS Ronald Reagan following a countermeasure wash down to decontaminate the flight deck while the ship is operating off the coast of Japan on March 23, 2011
16 US ships that aided in Operation Tomodachi still contaminated with radiation - News - Stripes
U.S. commander of 'Operation Tomodachi' moved by Japanese restoration efforts - The Mainichi Daily News
Japan eternally grateful for international support following disaster - The Mainichi Daily News