This message is part of the Kremlin’s policy of historical revisionism alleging that Poland has imperialist plans for Belarus. The Kremlin-controlled media regularly accuses the political elites of Poland in Russophobia and attempts to “subordinate Belarus and Ukraine”.
Moreover, the Kremlin propagandist messages repeatedly claim that all the regional organisations established by the countries of Central and Eastern Europe are aimed against Russia (Eastern Partnership, Three-Seas Initiative, Lublin Triangle, etc.).
Poland fully supports the independence and territorial integrity of Belarus, it does not have any territorial claims against its neighbours, and it rejects any “imperial” ambitions towards other countries.
The Lublin Triangle is a new regional initiative that will focus on developing and enhancing the economic, political, and cultural ties of Ukraine, Poland, and Lithuania. It will also serve as an important mechanism for strengthening Central Europe and promoting Ukraine's European and Euroatlantic integration.
In a Joint Declaration, the foreign ministers of the three countries emphasized that the countries are committed to upholding the international law, to broaden military-to-military cooperation, to further support the Eastern Partnership program, among other things. Recently, the Ministers of Foreign Affairs of the Lublin Triangle members have presented their common statement protesting against massive violence against peaceful protestors carried out by the Belarusian authorities.
Read related examples of the Russian disinformation messages: The Lublin triangle is an anti-Russian coalition of Russophobes, Polish authorities are obsessed with an idea of reconstruction of a modern Polish empire, The Giedroyc Doctrine is an edition of the Polish imperialism and Poland continues to tear off Ukraine and Belarus from Russia even during the pandemic.