Czech Prime Minister Petr Fiala has been unanimously re-elected leader of the Civic Democratic Party. The 57-year-old received all of the 510 valid votes cast at a party congress in Prague on Saturday. The political science professor has headed a coalition of five liberal and conservative parties since December. In his speech, Fiala promised a five-year plan to overhaul the country’s energy sector. “Our dependence on fossil fuels from Russia, unresolved for years, is one of the greatest security risks for our republic,” he said. The Czech Republic recently invited tenders for the construction …