American filmmaker Oliver Stone on Wednesday praised Russian President Vladimir Putin as a "stabilizing force" in the Middle East, particularly in Syria as Moscow fills a void left by U.S. forces pulling out and leaving behind their Kurdish allies.

Stone, the 73-year-old director of "JFK," ''Platoon" and "Wall Street," long has been known for his strident views on American foreign policy. However, his comments came during the Future Investment Initiative forum in Saudi Arabia, which has long opposed Syrian President Bashar Assad.

While Putin visited both Riyadh and the neighboring United Arab Emirates this month, their differences still remain stark over Syria's war, though they may be slowly reconciling with Assad's continued rule. It wasn't clear whether Stone, who made the documentary "The Putin Interviews," realized that before beginning his remarks.

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This photo taken on Wednesday, June 19, 2019, and distributed by Kremlin Press Service shows Russian President Vladimir Putin, left, during an interview with American movie director Oliver Stone for his Revealing Ukraine documentary in the Kremlin in Moscow, Russia. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP)

"Mr. Putin was always concerned about the terrorists," Stone said. "If they had gotten to Damascus and they almost did . there would be a possible caliphate throughout this whole region."

The director added: "I think Mr. Putin is very concerned about peace."

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Rebel forces did reach Damascus' doorstep before Russia and Iran entered the war on Assad's side, but they included a range of fighters, not just Islamic extremists.

This photo taken on Wednesday, June 19, 2019, and distributed by Kremlin Press Service shows Russian President Vladimir Putin during an interview with American movie director Oliver Stone for his Revealing Ukraine documentary in the Kremlin in Moscow, Russia. (Alexei Druzhinin, Sputnik, Kremlin Pool Photo via AP)

Meanwhile, activists say Russian airstrikes have repeatedly targeted hospitals and civilian sites in Syria's war, something Moscow denies.

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U.S. President Donald Trump earlier this month pulled American troops from northern Syria, leading to a Turkish invasion in an area home to U.S.-allied Kurdish forces. Trump's administration now wants U.S. forces to guard Syria's oil fields. In the absence of U.S. troops, Russian military patrols have moved into the region between all the warring parties.

In a little less than 20 minutes on stage at the forum, Stone also acknowledged evacuating his home Sunday night due to California's wildfires, promoted the idea of nuclear power plants and called Lee Harvey Oswald, President John F. Kennedy's assassin, an "agent of the CIA."

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Asked if he'd seen much of Saudi Arabia, Stone responded: "You've kept me locked in a hotel room." It wasn't clear if he knew the nearby Ritz-Carlton Hotel served as a detention facility during Crown Prince Mohammed bin Salman's 2017 purge targeting businessmen, princes and others.