BRUSSELS -- In the back room of an exclusive social club across the street from the U.S. Embassy here, Flemish separatists are plotting the breakup of Belgium. In their tailored suits and silk ties, ...

All politics are local, said “Tip” O’Neill. Not so. It is more true to say that all politics are tribal. For the 1991 prediction of Arthur Schlesinger — “Ethnic and racial conflict, it now seems ...