A turbulent security environment in Europe and strong rhetoric from President Trump have brought renewed attention to NATO, its role in dealing with shared security challenges, and the future of the United States’ relationship with its allies. Front and center are legitimate questions about commitments to defense burden sharing, as well as NATO’s role in counterterrorism. This serves an opportunity to renew the transatlantic security relationship. As part of the Atlantic Council’s project ‘A New Deal for NATO,’ NATO and Trump: The Case for a New Transatlantic Bargain provides pivotal insight and recommendations on how the United States and European allies can move forward to renew the transatlantic security and defense agenda, and make progress on these crucial areas, with the goal of bolstering our shared security.