The leaders have not spoken since July, when Biden demanded that Putin rein in Russia-based criminal hacking gangs launching ransomware attacks against the United States.

Ukrainian comedian Volodymyr Zelenskiy has won the second round of a presidential election against incumbent Petro Poroshenko by a landslide, a national exit poll showed on Sunday.

Maps can help you understand a lot about what’s going on in certain situations. Here are three maps that help explain the politics, pipelines and key places involved in the Ukraine crisis.