Navy Petty Officer 1st Class Michael Cowan greets his his wife, Senior Chief Shannon Cowan, after his return to Guam, Aug. 20, 2012, from a four-and-a-half month humanitarian assistance mission in Southeast Asia aboard the Military Sealift Command hospital ship USNS Mercy. The Mercy participated in Pacific Partnership 2012, the largest annual humanitarian and civic action mission in the Asia-Pacific region.