Tomáš Valášek is a senior fellow at Carnegie Europe, where his research focuses on security and defense, transatlantic relations, and Central European affairs. Previously, he served as the Permanent Representative of the Slovak Republic to NATO for nearly four years and, before that, he was president of the Central European Policy Institute in Bratislava (2012–2013), director of foreign policy and defense at the Centre for European Reform in London (2007–2012), and founder and director of the Brussels office of the World Security Institute (2002–2006). In 2006–2007, he served as acting political director and head of the security and defense policy division at the Slovak Ministry of Defense.