Leaders of 27 European Union countries meet in the Slovak capital Bratislava on Friday - without the UK - to discuss a post-Brexit EU.
Some believe the meeting could reveal an ideological split between old and new, between the established order of Europe's more federalist west and a "counter-revolution" spearheaded by conservative nationalists and populists in the east.
Divisions over the migrant crisis, observers say, could show the true depth of the schism.
Poland's Beata Szydlo has two roles. As Poland's prime minister, she represents 40 million people, many - like herself - devout Catholics.
But Poland also holds the rotating chair of the Visegrad Group, an informal alliance of four Central European countries. So in a sense she speaks for the whole region.
Visegrad, says Mrs Szydlo, has "enormous potential" and "a recipe for the EU" to bring it closer to its disenchanted citizens in the wake of Brexit. That recipe, she says, will be unveiled in Bratislava.
