On Sunday, former North Atlantic Treaty Organization (NATO) Supreme Allied Commander James Stavridis warned that Russian President Vladimir Putin has got his gun sights on ex-Soviet neighbors.

In an interview with MSNBC's Jonathan Capehart, a retired four-star US Navy admiral and current executive at the Carlyle Group said he was concerned that Putin wouldn't stop at Ukraine.

I don't think he will attack a NATO nation. He has his sights set on the nations that were part of the Soviet Union.

That is where he goes next. I worry about that a lot. The borders of Russia and Kazakhstan are shared by both of them. Alexander Lukashenko allowed Russian forces to cross his borders for the northern assault into Ukraine.

According to Capehart, there was no mention of the targets of Putin.

Putin would likely not attack those countries because they are NATO members, according to the Supreme Allied Commander of NATO.

He wouldn't cross a NATO border in anger because of the correlation of military force against him.

Map of Estonia, Latvia, Lithuania, Moldova, Belarus, Ukraine, and Russia
NATO members Estonia and Latvia, along with Belarus, sit on Russia's western border.
Screenshot/Google Maps

Two weeks ago, US President Joe Biden denounced the invasion of Ukraine as an attempt by Putin to rebuild the former Soviet Union.

If we don't move against him now, he will be emboldened.