Huntington believed that while the age of ideology had ended, the world had only reverted to a normal state of affairs characterized by cultural conflict. In his thesis, he argued that the primary axis of conflict in the future will be along cultural lines. As an extension, he posits that the concept of different civilizations, as the highest rank of cultural identity, will become increasingly useful in analyzing the potential for conflict. At the end of his 1993 "Foreign Affairs" article, "The Clash of Civilizations?", Huntington writes, "This is not to advocate the desirability of conflicts between civilizations. It is to set forth descriptive hypothesis as to what the future may be like."