How many Americans know that when Hurricane Sandy flooded New York in November 2012, some of the first foreign volunteers to show up with shovels were Japanese tsunami survivors who had lost their own homes the year before? In March 2011, the coastal city of Ishinomaki suffered more deaths and destroyed homes than any other town in Japan, and its people never forgot how U.S. Marines and sailors came to clear their mud during Operation Tomodachi. Nineteen months later, when a fourteen-foot storm surge submerged neighborhoods across New York and New Jersey, thousands of families in Ishinomaki were still living inside cramped prefabricated temporary shelters. They had every excuse to focus only on their own recovery. Instead, citizens in Ishinomaki passed donation boxes from hand to hand, wrote messages of encouragement, and sent Japanese disaster volunteers on a six-thousand-mile flight to New York. Why send survivors across the Pacific instead of just wiring a check? Because after eighteen months of gutting tsunami-flooded houses, the volunteers from Ishinomaki knew every step of stripping toxic black mold, pumping out basements, and sanitizing waterlogged timber before winter frost set in. Standing in rubber boots in Staten Island and Rockaway Beach alongside tearful New York homeowners, the Japanese team shoveled mud in the freezing wind and said: "When we had nothing left, America stood with us. Now it is our turn."