<p>WARSAW, Poland — The presidents of Ukraine, the Baltic nations and Poland are meeting in Warsaw Monday to mark the 230th anniversary of Poland’s constitution, Europe’s first such democratic document. </p>
<p>Ukrainian President Volodymyr Zelenskyy is due to hold talks with his Polish counterpart, Andrzej Duda, at a time of intensified conflict with Russia and tensions in eastern Ukraine. </p>
<p>Also attending the Constitution Day ceremonies are the presidents of Lithuania, Latvia and Estonia, countries on the European Union’s border with Russia and Belarus. They are scheduled to hold a televised debate.</p>
<p>Fighting the pandemic is also among the topics to be discussed. </p>
<p>The celebrations began with Duda and Lithuanian President Gitanas Nauseda addressing a remote session of the parliaments of Poland and Lithuania, neighboring nations that were one state at the time of the 18th-century constitution. </p>
<p>Poland’s 1791 Constitution was intended to strengthen its political system and rule of law and protect it against aggression from neighboring powers, including Russia. </p>
