Lt. Col. Ralph Peters was on “The O’Reilly Factor” today to discuss the Obama administration’s response to Crimea’s vote to leave Ukraine and join Russia.

President Barack Obama is imposing sanctions on key people who he says undermined the sovereignty of Ukraine.

“Telling a couple dozen Russians and […] Ukrainians that they can’t vacation in Vegas this year is not gonna get Putin out of Crimea,” Peters said. “It’s appalling to me that these tepid measures introduced by the president today with more to follow from the European union… they’re so timid that they only encourage Vladimir Putin.”

Peters said that Obama must stop pretending that negotiations will solve the world’s problems. “Vladimir Putin is playing ‘Game of Thrones’ and we’re playing ‘Downton Abbey,’” he said.

Peters said the president must also renounce and abrogate the strategic arms reduction treaty that he gave Putin. Finally, he suggested “broad, deep sanctions that really bite” because he said “Putin’s long-term Achilles' heel is that he does not understand economics.”

“I know the Russians, and I understand Putin, unlike most of the people in this administration,” he said. “First of all, he believes Ukraine is an integral part of Russia. Two: He wants eastern Ukraine so he has a firm land bridge to Crimea. Three: He wants vengeance on Ukraine. He is as vindictive as he is ruthless and brilliant. And so the only question to me is how will he do it? Will he use military force? Will he do it sooner rather than later? Will he just use subversion and wait for provocations? I can’t tell you how and when he’s gonna do it. But, Bill, I can tell you with 100% certainty […] Putin is not satisfied. He will take at least eastern and southeastern Ukraine when he’s ready.”

Read more on the sanctions:

Van Susteren: ‘Putin Should Have Been the First One to Get Slapped With Sanctions’

'I Don't Think Anyone Cares': McFarland Says Russia Sanctions Won't Deter Putin

WATCH: Obama Announces Expansion of Russia Sanctions After Crimea Vote