America seems to know what it's against, but what is it for? American isolationism has a checkered past, and not participating in global institutions is no longer a realistic option, says Christopher Preble, vice president for defense and foreign policy studies at the Cato Institute, and author of numerous foreign policy books. "When we hear President Trump and others talk about 'America first,' it raises a number of important questions," he says, defending America’s engagement in the world through trade and diplomacy. The Charles Koch Foundation aims to further understanding of how US foreign policy affects American people and societal well-being. Through grants, events, and collaborative partnerships, the Foundation is working to stretch the boundaries of foreign policy research and debate by discussing ideas in strategy, trade, and diplomacy that often go unheeded in the US capital. For more information, visit charleskochfoundation.org.