On December 3, 2024, the U.S.-Mexico Foundation and the Woodrow Wilson Center's Mexico Institute hosted the fourth edition of the Convocation program, coined Convocation 4.0. This event brought together thirteen former American, Canadian, and Mexican ambassadors to the U.S., Canada, and Mexico, along with two current ambassadors and various experts, in Washington, D.C. Since its inception in 2020, Convocation has served as a unique platform for in-depth debate and thoughtful analysis of pressing issues for North America. The program aims to facilitate off-the-record discussions among ambassadors and key stakeholders who influence regional cooperation. With new administrations in the U.S. and Mexico--and most likely a new one in Canada--this year's Convocation agenda focused discussions on key aspects of bilateral and trilateral relationships. The three countries of North America are facing a period of challenge today, with clear concerns in each nation about the pillars of cooperation essential to the unity that gives the region its unique strength. How to deal with the complex migration, trade, and public security issues can only be adequately addressed by greater cooperation. New administrations in each of the three countries will seek to review the relationship, maintaining those elements that function well and those that can be improved on. This report, resulting from an in-depth conversation with experienced diplomats and experts, offers guidance for the immediate and long-term future. The report offers a general overview of the discussions and context of the gathering, followed by a set of recommendations. [This report was produced with the U.S.-Mexico Foundation (USMF).]