President Zelensky claimed that Russia wants to 'erase' Ukraine and its history.
A Russian aircraft appeared in the prohibited EU airspace on Tuesday before landing in Slovakia.
Several roads around the Capitol will be closed to traffic from Tuesday evening.
According to reports, Russia and Ukraine have finally agreed to talk with an intent to end the war, without any preconditions.
Images of Ukrainian President Zelenskyy donning a military vest were widely shared on social media with the claims that he joined the Ukraine defense troops in the frontline to defend his country.
'Russian occupiers remain consistent in destroying critical infrastructure,' Ukrainian media account EuromaidanPR tweeted.
"Why don't you f**king surrender while you still have that chance," an unnamed Ukrainian soldier said in a video message to Russians.
Ukraine's Defense ministry noted on Saturday morning that 3,500 Russians have been killed and the other 200 have been taken prisoners since the attack began.
Economists maintain that Russian President Vladimir Putin holds $200 billion of wealth, much higher than official disclosure.
Netizens condemned Joe Biden for prioritizing taking a weekend off as the 'world burns.'
Ukrainian President Zelenskyy warned that Russian forces will storm the capital in the early hours of Saturday local time.
In another video, the passenger in the car crushed by the Russian tank was seen being rescued by the locals.
The West has two options -- seek more oil from Saudi Arabia or ease Iran sanctions to free up more crude.
'The Louis CK Show in Kyiv has not been canceled,' a person wrote on Twitter.
"Our defenders are giving their lives so that the tragedy of 1986 will not be repeated," Ukrainian President Volodymyr Zelenskyy said in a tweet.