Czechs are voting amid concerns over security and potential Russian influence. Populist billionaire Andrej Babis is expected to lead the next government but may need to ally with extreme parties. Babis emphasizes a pro-EU stance while facing challenges from potential coalition partners advocating for referendums on EU and NATO membership. Young voters express concerns about the country's future and the rise of pro-Russian sentiments. Security analysts warn of the implications of a Babis-led government on Czech foreign policy.