Most trees in New Brunswick are at risk from climate warming, which requires the development of strategies to increase the adaptive capacity of forests. Planting trees that are adapted to the warming climate could dramatically increase the resilience of our forest to global changes, to the benefit of all New Brunswickers. In partnership with J.D. Irving, two federal agencies, four provincial forest agencies, and seven academic institutions from Canada and the United States, we propose to leverage a novel network of legacy trials established under the Silva21 research initiative called TransX to develop new operational knowledge that can inform forest-assisted migration and tree improvement, two key components of climate-smart forest interventions. This project, coordinated by Associate Professor Loïc D’Orangeville at the University of New Brunswick, leverages three secured and one potential funding source from four different federal programs. Requested funds will help support 1) the training of one PhD student and six undergraduate students, 2) research activities in the field including monitoring equipment and travel, and 3) the organization of workshops and meetings with all project partners and collaborators to ensure successful knowledge transfer and provision of meaningful results to answer partner needs. Forest managers (governments, industry and woodlot owners) will be able to use our results to better select species and genetics that can tolerate their displacement north of their current growing area, and increase the resilience of the forest to climate warming.