By joining the European Union and the Euro-Atlantic community of NATO on 2004, Lithuania officially declared the aim „to continue to be an active member of the international community, effectively contributing to the response to crises, crisis management and peace keeping operations“ as one of the priority goals of its foreign policy. Although Lithuania has been participating in peace operations (PO) since 1994, mostly due to its integration into the EU and NATO, Lithuania has had the opportunity to be involved in various peace operations and missions, and to set up legal and institutional framework related to the deployment of both military and civilian personnel. Before focusing on the current state of deployments of Lithuanian civilians in PO, existing policies as well as the legal basis, it is important to begin with a description of the history of Lithuania‘s involvement in PO, primarily related to military participation.