If Russia invades a NATO country, will the U.S. do anything to stop it?

As Russia continues to push forward in Ukraine with little international resistance, TheBlaze's national security adviser Buck Sexton asked: "If Russia invades a NATO country, are we going to do anything about it?"

"We can take a look at the way the Russians have been waging another war, and look at U.S. preparations for the possibility of a Russian incursion into a NATO country, and draw some pretty startling conclusions," he said. "There are Russian tanks, Russian artillery and even Russian forces who are part of this effort to carve off a piece of Ukraine. Despite all the international talks, despite the sanctions and despite the ceasefire, this conflict is still going on with no end in sight. Over 6,000 have been killed so far."

Sexton showed the audience a map of NATO countries, and said the most vulnerable are likely Lithuania, Latvia and Estonia.

Russian President Vladimir Putin speeches in the Haidarabad Palace on December 11, 2014 in Delhi, India. Credit Konstantin Zavrazhin/Getty Images

"So what's been going on for the last couple of weeks is the U.S. has decided to pre-position in all these countries ... forces and munitions, as well as some pretty heavy equipment and vehicles that are ready to respond to a Russian incursion," Sexton explained. "The problem is, so far, we're talking about a pretty small element, a brigade-size element that will be in these countries ready for a quick reaction to any sort of Russian aggression."

"So what will we do if the Russians try to carve off a part of one of these countries as they have in Ukraine?" Sexton continued. "Would we send a major troop presence or would it continue to be a sort of stalemate like what we've seen in Ukraine?"

Sexton said the preparations so far are "not enough," and at this point, "if Russia decides it wants to carve off a piece of one of these countries, they may think they can get away with it."

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