During his recent visit to Lithuania for a NATO summit focused on supporting Ukraine in its conflict with Russia, President Biden made several verbal missteps, including mixing up the names of the two countries and their leaders.

On Wednesday, while addressing the NATO summit in Vilnius, Biden mistakenly called Ukrainian President Volodymyr Zelenskyy "Vladmir," seemingly confusing him with Russian President Vladimir Putin. Appearing unaware of the slip-up, Biden continued, saying he "shouldn't be so familiar," before correctly addressing Zelenskyy as "Mr. Zelenskyy."

President Biden with President Volodomyr Zelenskyy at the G-7 Declaration of Joint Support for Ukraine during the NATO summit in Vilnius, Lithuania, July 12, 2023. (Dominika Zarzycka/NurPhoto via Getty Images)

It's worth noting that "Vladmir" and "Volodymyr" are variations of the same name, with "Volodymyr" being the more common form in Ukraine.

In a subsequent address after the summit, Biden confused the two nations involved in the conflict, referring to Ukraine as Russia. He stated, "Russia could end this war tomorrow by withdrawing its forces from Ukraine and recognizing its international borders and ceasing its attacks – its inhumane attacks – on Russia – I mean by Russia on Ukraine," correcting himself mid-sentence.

President Vladimir Putin participating in a conference call at the Novo-Ogaryovo residence outside Moscow, Russia, March 4, 2022. (Andrei Gorshkov, Sputnik, Kremlin Pool Photo via AP)

These recent gaffes add to a series of verbal stumbles by Biden, including a moment last month where he stated that Putin was "clearly losing the war in Iraq."

Such incidents have fueled ongoing discussions about Biden's cognitive abilities as president. If the 80-year-old president secures a second term, he would be 86 upon leaving office.