Аннотация:Summary The Mexican state's drive toward industrialization during World War II and the post-war years required the cooperation of organized labor. Central to this policy was the role played by American trade unions, which cooperated with US government agencies in providing financial and logistical support for Mexican trade unionists who complied with state development policy. The interests of American labor leaders, US policymakers and Mexican modernizing elites converged in an attempt to eradicate radical unionism and promote US hegemony in the western hemisphere. This study builds upon works that treat the earlier activities of US labor in Mexico.