Bangladesh, Oct. 2 -- The formation of the Alliance for Islamic Remigration marks a significant new development in America's increasingly polarized debate over immigration, religion, constitutional government and national identity. Four conservative organizations-the Center for Renewing America, American Accountability Foundation, Oversight Project and American Strategy Group-have joined forces to challenge what they describe as the growing influence of Islam and its political allies in American public life.

The alliance says it intends to pursue legislation, legal strategies and public education aimed at what its leaders characterize as the "Islamification" of American culture. Its launch comes at a moment when the political visibility...