Slovakia may be a small country, but its upcoming elections could have a big impact across Europe and beyond. One of the strongest supporters of Ukraine in its war against Russia, Slovakia was the first Nato country to deliver fighter jets to its eastern neighbour. But could that soon change? September’s snap elections follow the collapse of Slovakia’s staunchly pro-Western government. Leading the polls is the populist party of former Prime Minister Robert Fico. The fiercely Moscow-friendly candidate has promised to end military aid to Ukraine, if he returns to power. John Kampfner travels across Slovakia to find out why the country looks set for a dramatic political about-turn.