When Slovakia¡¯s longest-serving prime minister was forced out of office in 2018 following the biggest mass protests since the communist era, he grinned and vowed that he¡¯d be back. Few, though, took him seriously.

Robert Fico saw his closest ally defect to form a new party, prosecutors seek to put him and his associates behind bars for alleged corruption and his Smer party collapse to a record low in opinion polls. Yet reaction to the war in Ukraine has created a path back to power that would further test the European Union¡¯s ability to remain united against Russian belligerence, even more so after Poland¡¯s recent spat with Kyiv.

Slovaks will vote on Sept. 30 in a tight election, and Fico has tapped into concerns over the fallout from the conflict. In a country of 5.4 million people who are the most pro-Russian in the region, he has vowed to end military aid to Ukraine, called Slovakia¡¯s president an ¡°American agent¡± and opposes NATO membership for its war-ravaged neighbor.