Waving Czech, U.S., NATO and Ukrainian flags, many in the crowd voiced support for Ukraine in the war against Russia, in contrast to the protest on Friday when organizers who oppose the European Union and NATO called for direct talks with Moscow about gas supplies.Signs on the podium on Sunday read "Czechia against fear" and "We can handle it" as founders of the Million Moments for Democracy --the group that organized the event -- told the crowd that despite fears over high energy prices and the war in Ukraine the future of democracy was at stake.The demonstration also featured a video appearance from Ukrainian first lady Olena Zelenska, who urged people to remain focused on what is happening in her country.High energy prices, fuelled by the war in Ukraine, have piled pressure on governments across Europe to cushion the blow of mounting energy costs for consumers and businesses.In the Czech Republic, Prime Minister Petr Fiala's government has signed up to EU sanctions against Russia and taken a tough stance over Moscow's invasion of Ukraine."