In the aftermath of the military withdrawal from Afghanistan and the country's chaotic collapse, it is easy to forget the prominent role that the United States played in building, leading, and sustaining a forty-nation coalition for the war effort—a task that required some determined diplomacy and a sophisticated understanding of what each country brought to the table. As the United States pivots to the Indo-Pacific region and the competition with China for legitimacy and influence below the level of armed conflict, the question becomes whether coalition building is the right approach for new challenges and a new strategic environment. Retired US Army Lieutenant General Douglas Lute and retired Australian Army Major General Duncan Lewis both have deep experience working with coalitions, both as senior officers and in diplomatic roles. They join this episode to share their experiences and lessons for the future.