EXPLAINER: Main issues at Russia-US security talks

Officials from Russia and the United States and its NATO allies will sit down for talks focusing on Moscow’s demand for Western security guarantees amid a buildup of Russian troops near Ukraine

MOSCOW -- Officials from Russia, and the United States and its NATO allies, are meeting this week for negotiations on Moscow’s demand for Western security guarantees and the West's concerns about a recent buildup of Russian troops near Ukraine.

Russian and U.S. negotiators have a round of talks scheduled in Geneva on Monday that will be followed by Russia-NATO talks in Brussels and a meeting in Vienna of the Organization for Security and Cooperation in Europe over the course of the week.

Here is a look at the agenda of the security talks and the main issues of contention:

RUSSIAN INVASION FEARS