Rep. Brian Fitzpatrick said Russian President Vladimir Putin's appetite to reconstitute the former Soviet Union and his advanced age are two significant factors in his invasion of Ukraine.

"Two things about Vladimir Putin: He's got a significant appetite for risk when it comes to Ukraine," the Pennsylvania Republican and Congressional Ukrainian Caucus co-chair told Fox News. "He's identified three capitals of Christianity in the world: Rome, Jerusalem and Kyiv."

"If you want to get inside of his mind, this is almost like a West Bank situation for him," he continued. "This is sacred holy ground to him, and it's the first step in reconstituting the former Soviet Union."

Russian President Vladimir Putin

Russian President Vladimir Putin spoke to female flight attendants in comments broadcast on state television on Saturday, March 5, 2022. (Reuters Video)

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Fitzpatrick pointed to Putin's advanced age and desire to cement himself in Russian history books as a second driving factor in the Ukraine invasion.

"Vladimir Putin is about to turn 70 years old, and he's up for re-election in 2024," he said. "He has what I call ‘legacy mania.’ He's now focused on how he's going to be written in the history books that future Russian children read."

"It's our job to make sure when the history books are written that Vladimir Putin was, in fact, the dumbest leader they've ever had," Fitzpatrick added.

Fitzpatrick and a bipartisan coalition of lawmakers on the House Foreign Affairs Committee went to the Poland border Friday to get as close to the Russia-Ukraine war as possible. The delegation hoped to see firsthand what is needed to help the Ukrainian people. 

As a former FBI agent, Fitzpatrick was sent to Ukraine in 2015 to work out of the U.S. embassy. While there, he helped the country with anti-corruption and economic metrics in its push to become a part of NATO.

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Fitzpatrick said Ukraine was falling short on those metrics because Putin "constantly sent saboteurs" into the country to erode its institutions, judicial system, police force and energy contracts, among other areas.

Fitzpatrick told Fox News that the U.S. now needs to close all Russian sanction loopholes, including seizing all assets and sanctioning 100% of their banks. He believes Russian exports must face sanctions worldwide, and we must target Russian energy and ban all of their imports into the U.S.

Vladimir Putin, Russia's president

Russian President Vladimir Putin attends a meeting with Russian Defence Minister Sergei Shoigu at the Kremlin, in Moscow on February 14, 2022. ((Photo by ALEXEI NIKOLSKY/Sputnik/AFP via Getty Images))

Fitzpatrick also believes the U.S. must sanction "everybody that's anywhere near remotely affiliated" with Putin and his regime, including their family members. 

"Sergei Lavrov – Vladimir Putin's right hand – his daughter lives in the United States," Fitzpatrick said. "A lot of these oligarchs funnel money to their children."

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"It's got to be all-encompassing," he continued. "There can't be any carve-outs because we're worried about blowback on some of our respective economies because then you're just perpetuating the problem and kicking the can down the road."

"You're going to have a far more costly problem in terms of economics and lives," Fitzpatrick told Fox News.

Fitzpatrick said NATO must also implement a no-fly zone over Ukraine, a strategy NATO nations have opposed.

A no-fly zone could actively pit NATO forces against the Russians. Secretary Jens Stoltenberg called ruling out such a move a "painful decision" and said NATO has a responsibility not to escalate the conflict by engaging Russian forces directly in Ukraine, either on the ground or in the air.

President Vladimir Putin

Vladimir President Vladimir Putin ordered Russia’s all-out invasion of Ukraine only eight months after TIME magazine billed President Biden as ready to take on the Russian leader.  (Sputnik, Kremlin Pool Photo via AP)

Ukraine is "a young democracy like we used to be," Fitzpatrick said, "Our democracy is 245 years old, which is very young – just a few generations – yet we are the world's oldest democracy."

"No democracy on this planet has survived more than a few generations, yet so many people take that for granted," he added. "It could disappear tomorrow. We have to guard it vigilantly."

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Fitzpatrick said Ukraine is a 30-year-old democracy that won its freedom in 1991. He said young democracies need help from other "freedom-loving" democracies around the world.

"If the message that is sent to the world is that we're going to leave Ukraine to fight on their own, that sends a devastating message to the world," Fitzpatrick told Fox News. "It's unbecoming of American values, and it's unbecoming of Europe and freedom across the globe."

"We have to be there to defend them," he said.

Marisa Schultz and Paul Conner contributed to this report.