Book excerpt: Foreign Relations in Federal Countries addresses questions such as: What constitutional powers do the federal governments and constituent states have to conduct foreign affairs? To what degree are relations between orders of government regularized by formal agreement or informal practice? What roles do constituent governments have in negotiation and implementation of international treaties? The volume offers a comparative perspective on the conduct of foreign relations in twelve federal countries: Argentina, Australia, Austria, Belgium, Canada, Germany, India, Malaysia, South Africa, Spain, Switzerland, and the United States.