PODGORICA, July 12 (Reuters) - A Montenegro court acquitted 13 people including pro-Russian politicians and two Russian intelligence officers on Friday in a retrial over an alleged 2016 election day plot to topple the government and kill then-prime minister Milo Djukanovic. The defendants were initially convicted in 2019 and given long prison terms over the alleged plot against the pro-Western Djukanovic, who led the small Adriatic state almost continuously as premier or president for three decades until 2023. But the verdict was overturned on appeal in 2021 and a retrial was ordered.