For years this column has argued that there is a solid alliance between Russia and China, and that this alliance constitutes a direct military challenge to the United States. To ignore this threat endangers the security of the people of the United States. This seems to be a minority opinion, however, and one of the many experts who disagree with this analysis is Jeffrey Mankoff, the Deputy Director for the Russia and Eurasia Program at the Center for Strategic and International Studies in Washington, D.C.