The celebration started with the joint laying of a wreath at the monument of the Union of Lublin. The ceremony was also attended by representatives of self-government and province authorities, as well as the commanders of the Grand Hetman Kostiantyn Ostrogski Lithuanian-Polish-Ukrainian Brigade.
 
Later, the top diplomats moved to the National Museum at the Lublin Castle to discuss the most important cooperation issues, including counteracting disinformation, security in the region, and cooperation initiatives.
 
Towards the end of the celebration, the foreign ministers of Poland, Ukraine, and Lithuania adopted a Lublin Triangle anniversary statement and took part in a joint press conference.