Centering peacebuilding and conflict prevention in U.S. foreign policy and assistance is not just the right thing for the incoming Trump Administration to do—it is the smart, strategically sound, and cost-effective thing to do. Every dollar invested in conflict prevention saves $16 that would otherwise be spent on expensive humanitarian or security responses. Peacebuilding’s inherent multisectoral, coordinated, and crosscutting approach results in more informed, evidence-based, and fit-for-purpose interventions that address the underlying drivers of violent conflict, violence, and insecurity. The previous Trump Administration made important strides by signing into law the Global Fragility Act (GFA) in 2019, along with other key laws that elevate conflict prevention and peacebuilding in U.S. foreign policy and assistance. By picking back up this mantle, the incoming Trump Administration has an opportunity to reduce and prevent violent conflict, violence, and fragility, stabilize rampant insecurity, and build sustainable peace at a time of record-breaking global conflict. However, to do so, the Trump Administration must ensure robust implementation of their laws and strategies, which requires changing the way the U.S. does business and prioritizing conflict prevention and peacebuilding. Such an approach can help the U.S. outmaneuver its geopolitical competitors, save American taxpayer money, and build a cadre of long-term allies and partners to advance U.S. interests and security globally.