America’s allies are cooperating in a growing variety of domains. In their recent Foreign Affairs piece, former NATO Ambassador Julie Smith and former National Security Council Senior Director Lindsey Ford argue that the United States should support and facilitate cooperation among America’s European and Indo-Pacific allies. In a world where U.S. adversaries are deepening their cooperation, it is no longer sufficient to ask allies to just focus on their own respective geographic corners of the world. Smith and Ford argue that cooperation between American allies stands to benefit American grand strategy.  This week on Brussels Sprouts, if the United States fails to capitalize on the already present trend of growing cooperation, Washington risks self-isolation and an inability to effectively manage challenges in a world where the lines between Asia and Europe are blurring and crises on one continent have spillover effects on the other. To discuss this and more, the Center for a New American Security is very pleased to welcome Julie Smith and Lindsey Ford to Brussels Sprouts.   Julie Smith is president and cofounder of Clarion Strategies and former U.S. permanent representative to NATO from 2021 to 2024.   Lindsey Ford is a senior fellow at the Observer Research Foundation and a former senior director for South Asia at the National Security Council from 2024 to 2025. She served as U.S. deputy assistant secretary of defense for South and Southeast Asia from 2021 to 2024.