According to Presidential Decree “On establishment of VISA-FREE ENTRY and exit of foreign nationals”, foreign citizens of 74 countries (including most European countries, Australia, USA, Japan, etc.) can enter Belarus for up to 30 days without getting visa. The Decree applies to people, who enter Belarus and exit from the country only through the State border checkpoint of the Republic of Belarus “Minsk National Airport” (except for flights from/to the Russian Federation). Additional information can be found on the site of the Ministry of Foreign Affairs of the Republic of Belarus. If you need a visa to enter Belarus (e.g. if you want to enter Belarus by train or through Russia), the Organizing Committee will prepare and send you an official invitation letter, satisfying all the requirements of the Ministry of Foreign Affairs.
Citizens of certain countries have the right of visa-free travel in Belarus without the limitations listed above.