To take part in the festivities are invited EU leaders, presidents of Latvia, Estonia, Finland, the Czech Republic, Slovakia, Romania, Slovenia, Croatia, Bulgaria, Germany, Austria, Ukraine and Hungary, the prime minister of Canada, the King of the Belgians, the Grand Duke of Luxembourg.
During a meeting with U.S. President Barack Obama, the Baltic and Central European leaders will discuss opportunities to enhance regional security and the importance of U.S. presence in Europe, as well as measures of unified response to the threats coming from Russia.
The heads of state or government will also exchange views on cooperation in addressing energy, economic, information and cyber security issues. Taking part in the meeting will also be President-elect of Ukraine Petro Poroshenko.
In the face of newly emerging geopolitical threats, two historic events that triggered the collapse of the Soviet empire are marked this year. 25 years ago, on 4 June 1989, Poland held first free elections to the Sejm and Senate which were won by the Solidarity movement - the first non-communist government in this part of Europe. On 23 August of the same year, Lithuania, Latvia and Estonia showed their unity forming the Baltic Way.
According to the President, the Baltic countries' and Poland's peaceful struggle for freedom even now - after a quarter of a century - is an example for other nations moving along their path of democratic development, especially for Ukraine.