Arena is an innovative program dedicated to overcoming the challenges of disinformation and polarization. Directed by SNF Agora Senior Fellows Anne Applebaum and Peter Pomerantsev and housed within the SNF Agora Institute, Arena lab aims to use high-quality research, analysis, and evaluation to create effective best practices that can then be disseminated to journalists, public diplomacy teams, and civic groups. Arena seeks creative ways to counter the menace of unreality, stop the spread of hatred and division, and foster a fact-based discourse that enhances security, enables democracy, and builds trust. Its experimental research projects involve journalists, academics, and data scientists who seek to both understand disinformation campaigns and reach audiences impacted by them.