Russia, Ukraine, and U.S. will publicly discuss conflict at a U.N. Security Council meeting

The United Nations Security Council will meet Monday to discuss for the first time Russia's troop buildup on the Ukrainian border. The meeting will occur at the request of the United States – all key players are expected to openly discuss the potential global effect of a Russian invasion.

U.S. Ambassador to the U.N. Linda Thomas-Greenfield when announcing the meeting last week called Russia's actions "a clear threat" to international peace.

In an apparent effort to set the meeting's agenda, she also said U.N. members must "squarely examine the facts and consider what is at stake for Ukraine, for Russia, for Europe, and for the core obligations and principles of the international order should Russia further invade Ukraine."

"We’re going into the room prepared to listen to them, but we’re not going to be distracted by their propaganda," Thomas-Greenfield said Sunday on ABC's "This Week."

Russia's U.N. representatives have criticized the meeting having been called.

"Hopefully fellow UNSC members will not support this clear PR stunt shameful for the reputation of UN Security Council," tweeted Dmitry Polyansky, Russia's deputy U.N. ambassador.

To block the meeting before it begins, Russia would need support from nine of the 15 Security Council members. Biden administration representatives are expressing confidence in the meeting taking place as planned.

China's ambassador to the U.N. had indicated that Beijing supports Russia's desire to oppose a council meeting.

The reason for the conflict, and the possibility of a Russia invasion, is essentially that Russian President Vladimir Putin opposes Ukraine's efforts to join the North Atlantic Treaty Organization, led by Western nations. 

Russia's buildup of roughly100,000 troops along its border with Ukraine has triggered increasingly serious worry from such nations that Moscow intends to invade.

Russia says otherwise but is demanding that NATO commit itself to never allowing Ukraine to join the alliance, and to dial back the deployment of alliance weapons and forces to Eastern Europe.

NATO and the U.S. have called those terms non-starters.