The populist leaders of Serbia and Hungary observed a Serbian military exercise on April 22, an event seen as a display of lethal firepower amid the war in Ukraine and tensions in the Balkans. Hungarian Prime Minister Viktor Orban arrived in Serbia on a previously unannounced visit. He was greeted by Serbian President Aleksandar Vucic, who said he was happy "to once again welcome a great friend of Serbia." "Serbian-Hungarian relations are at the highest level in the history of our countries," Vucic wrote on Instagram. To read the original story by AP, click here.