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On WNYC's "The Brian Lehrer Show," political science professor Kimberly Marten discusses topics addressed in her book, Warlords: Strong-arm Brokers in Weak States. Listen to the segment:

The Acting Director of Columbia University's Harriman Institute, Prof. Marten specializes in international relations and international security. Her research focuses on warlords and militias and their relationship to sovereign states and state security institutions, in places ranging from Afghanistan and Iraq to the former Soviet Union.