There's growing concern that NATO could move to block U.S. military movements to Eastern Europe should President Joe Biden decide to deploy the 8,500 troops he put on heightened alert as the world waits to see if Russia invades Ukraine. The Pentagon said this week that the troops, if deployed, would do so under the North Atlantic Treaty Organization's (NATO) Response Force (NRF). Each member country has veto power since deployment under those measures requires a unanimous vote from the North Atlantic Council (NAC) members to approve deployment. And it's unknown if all NATO ally countries are on the same page when it comes to how to respond to Russian aggression