The following is a guest post by Dr. Dan Reiter. Dr. Reiter is the Samuel Candler Dobbs Professor of Political Science at Emory University. He is the author, coauthor, or editor of Crucible of Beliefs: Learning, Alliances, and World Wars (Cornell, 1996), Democracies at War (Princeton, 2002, with Allan C. Stam), How Wars End (Princeton, 2009), and The Sword’s Other Edge: Tradeoffs in the Pursuit of Military Effectiveness (Cambridge 2017), as well as dozens of scholarly articles. I am the new associate editor for international relations (IR) at the American Journal of Political Science, and I...