In tonight’s Talking Points Memo, Bill O’Reilly said it’s clear that the world will not punish Russia for seizing Crimea.

President Barack Obama today said that if Vladimir Putin seizes more of Ukraine, the U.S. will get tough.

According to a CBS News poll, 61 percent said the U.S. does not have a responsibility to do something about the Ukraine crisis, and 65 percent do not want Obama to provide military aid to Ukraine.

O’Reilly said Americans are “rightfully fearful” of becoming involved in another international conflict after Iraq and Afghanistan, but he said there’s more at play here than Americans know. “The Factor” host said Putin’s actions will influence what Iran, China and North Korea do.

“A weak response to Putin sends a signal of weakness to the villains of the world,” he said.

While Putin has expanded the Russian military budget by 79 percent, the U.S. is cutting back.

“Right now, Putin is winking at Joseph Stalin as Russian expansionism is on the march,” O’Reilly said.

According to O’Reilly, Americans should expect the world to get more turbulent, which affects all of us because every time there’s a controversy, the economy takes a hit. He said Congress should immediately bolster military spending and oversee armed forces so that they become a true deterrent.

Charles Krauthammer was on “The O’Reilly Factor” to respond to the Talking Points Memo. He said Obama has a “ridiculous rhetorical bravado,” adding that Obama today said that Russia has been acting out of weakness.

“Acting out of weakness? [Putin] just became the first person in history to take the Crimean peninsula without a shot, without a fatality, without so much as a sprained ankle in his army.”

Krauthammer said that Obama often references a “red line,” at which point he says he will get tough.

“The world knows what happens with red lines,” Krauthammer said. “They disappear the moment they’re crossed.”

Watch the Talking Points Memo and Krauthammer’s reaction above.

Read more on the Ukraine crisis from Fox News:

Obama: 'Much More Worried About Nuclear Attack on NYC' Than Russia

'The World's Always Been Messy': Obama Defends U.S. Response to Putin

Bolton: 'Obama Admin's Sanctions Against Russia Are Meaningless'