On Sunday there were rallies in Prague and Brno to support the protests going on in Belarus. The protests going on in Minsk are against Alexander Lukashenko who has led the country for 26 years.
He became president in 1994 when Belarus gained independence from the Soviet Union so he is the only leader that the country has ever had. Lukashenko is known as the last dictator in Europe.
The Pahonia was the official emblem of Belarus in 1918 and from 1991 to 1995.
Update: 8 October 2020, the Belarus government has pretty much shut down the embassies of Poland and Lithuania in Minsk. The government has accused them of meddling in its internal affairs. In solidarity, Czech Republic, Germany, Estonia, and Latvia will now recall their ambassadors to Belarus. The EU has blacklisted 40 Belarusian officials over the police crackdown on demonstrators against rigged elections.