ALAMEDA, Calif. - Capt. Mathew Bliven, commander of the U.S. Coast Guard Cutter Morgenthau, welcomes the Nigerian Minister of State and Defense, Erelu Olusola Obada, during a ceremony for the departure of the Nigerian Navy Ship Thunder November 21, 2011. Formerly the U.S. Coast Guard Cutter Chase, the NNS Thunder was transferred to the Nigerian Navy in a formal ceremony May 13, 2011. U.S. Coast Guard photo by Petty Officer 3rd Class Caleb Critchfield.