Bosnian Serbs march carrying a giant Serbian flag in Sarajevo, Bosnia, Sunday, Jan. 9, 2022. Amid Bosnia's greatest political crisis since the end of its 1992-95 inter-ethnic war, the country's Serbs celebrated an outlawed holiday Sunday with a provocative parade showcasing armored vehicles, police helicopters and law enforcement officers with rifles, marching in lockstep and singing a nationalist song. (AP Photo)