Ukrainian president Volodymyr Zelensky and his Lithuanian counterpart are set to speak with students in Poland via video link.
Mr Zelensky is expected to carry out a questions and answers session with the students in Warsaw.
Lithuania's president, Gitanas Nauseda, will make a speech during his appearance.
It comes as Poland became the latest country to pledge to send more Leopard 2 tanks to help Ukraine bolster its defences.
The Polish prime minister, Mateusz Morawiecki, said he will send 14 of the Leopard 2 tanks.
In addition, they will also send 60 of its PT-91 tanks, Polish-made battle tanks.
In response, Mr Zelensky thanked Poland on Twitter for the decision to send them.
"Like 160 years ago we are together, but this time the enemy doesn't stand a chance. Together we will win," he tweeted.
Mr Morawiecki replied: "We were, we are and we will be together."
Watch more videos at the Independent TV: [ Ссылка ]
Click here to subscribe to The Independent: [ Ссылка ]
About The Independent:
Making Change Happen. The Independent is the world’s most free-thinking newsbrand, providing global news, commentary and analysis for the independently-minded.
Connect with The Independent:
Check out our full video catalog: [ Ссылка ]
Videos, daily editorial and more: [ Ссылка ]
Click here to get the best of The Independent daily: [ Ссылка ]
Like The Independent on Facebook: [ Ссылка ]
Follow The Independent on Twitter: [ Ссылка ]
Follow The Independent on Instagram: [ Ссылка ]
Download the iOS & Android app: [ Ссылка ]
Help to support truly independent journalism. Every dollar you contribute will directly fund additional special reports and investigations from a free-thinking, award-winning newsroom you can trust - [ Ссылка ]
Subscribe to Independent Premium for exclusive content & live events: [ Ссылка ]
