On 30 April 2021, thousands of Czechs have rallied in Prague against President Milos Zeman, calling for his removal from office and condemning what opponents say are his pro-Russia views.
Reading the news about the event, I noticed that the protesters held three large flags: of the European Union, of Ukraine, and of Belarus. I don't follow the logical link between the protest and the flags. I'm aware about the recent events in Czech Republic and how it might be related to Ukraine, but again, that does not explain the linkage to the flag of Belarus.
Has any of the protesters explained the significance of Ukrainian and Belarusian flags on the rally?