PARIS (AP) — A series of high-level talks are in the works to avert the threat of war as Russian troops mass by the tens of thousands on the borders of Ukraine. On top on the list is an meeting between Russian President Vladimir Putin and the Hungarian prime minister. Anticipation is high that Putin will speak about the crisis for the first time in weeks. British Prime Minister Boris Johnson is taking a break from his troubles at home for a meeting Tuesday in Kyiv with Ukrainian President Volodymyr Zelenskyy. Meanwhile, a top U.S. cybersecurity official is in Europe meeting with U.S. allies to help coordinate efforts to defend against and respond to potential cyberattacks launched by Russia against Ukraine and others.