People walk past a wall depicting Russian President Vladimir Putin (L) and US President Donald Trump and with a message in cyrillic letters reading “Kosovo is Serbia” in Belgrade on April 2, 2017. Serbians head to the polls to elect a new president, with strongman Aleksandar Vucic hoping to tighten his grip on power amid opposition accusations he is shifting the country to authoritarian rule. / AFP PHOTO / ANDREJ ISAKOVIC