Earlier quoted context omitted.
How the USA should approach Eastern European region?
Why is the US interested in Europe at all? Whatever the reason, it's clear that failing to secure the Eastern Flank, even if there is no particular interest in Central and Eastern Europe (though there most certainly is), puts the rest of Europe in danger. A tangible example of this threat was the Polish-Soviet War of 1919-1920 (had the Poles lost, the Soviets would have marched right into Germany and probably beyond)…
To encircle and strangle Russia.
That's how Russia sees it, at least, and I have a hard time arguing with that.