Robert Fico has been appointed Slovakia’s prime minister for the fourth time and will attend an EU summit in Brussels this week, where the nation-first populist’s fellow leaders should get an early indication of how obstructive he intends to be. President Zuzana ?aputová on Wednesday formally approved the new three-party coalition government led by Fico, whose party won elections last month on pledges to end military aid to Ukraine, slash immigration and defend Slovakian sovereignty. “We will be a constructive government. You will see sovereign Slovak foreign policy,” Fico said at the ceremony. ?aputová told the new prime minister he...