Former Ukraine President Petro Poroshenko has been spotted among citizens in Kyiv wearing battle armor, a video online shows.
In the video, Poroshenko said the situation in Ukraine remained dire as Russia sieged the capital.
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"We are in the center of Kyiv, we are here to protect Ukraine," said Poroshenko, who is seen wearing a bullet-proof vest. He said Russian forces were a "little bit more than 2 kilometers (1.2 miles) from here."
"This is very difficult to explain. What does it mean in the 21st century, in the middle of Europe, to be awakened by the Russian missile attack, by Russian airborne attack?" he added.
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The former president also thanked the international community for supporting Ukraine in the war noting it serves as "a great demonstration that Ukraine and its people are not alone."
"We want to be free. We want to be democratic. And we want to return back our country to the European family," he continued. "Putin hates Ukraine, he hates Ukrainians."
Former Ukrainian president Petro Poroshenko has joined troops defending the capital city from the advancing Russians.
— Sky News (@SkyNews) February 26, 2022
Latest: https://t.co/X3flQUk9BR pic.twitter.com/k4GHoGESqZ
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Poroshenko served in office 2014-2019, losing his re-election bid to current President Volodymyr Zelenskyy.
Vitali Klitschko, the current Kyiv mayor, and his brother, Wladimir Klitschko, a retired pro boxer, also joined the Ukrainian military to fight against Russia, writing on a LinkedIn post that was critical of Russian President Vladimir Putin.
"Putin wants to call into question the geopolitical balance across the whole of Europe, he dreams of being the defender of the Slavic peoples wherever they live, and he wants to restore a fallen empire whose demise he has never accepted," Klitschko wrote.