As Zelensky set to speak to Parliament, here's a look at other leaders who have spoken

Ukraine's President Volodymyr Zelensky is scheduled to deliver a virtual address to Canada's Parliament on Tuesday as his country resists a brutal invasion from Russia. Though he is not the first international leader to speak to Parliament, he will be the first to deliver his address virtually.

He is not the first international leader to speak to Parliament, and in fact, he is the third Ukrainian president to address Canadian MPs and senators. In 2008, Viktor Yushchenko received several standing ovations as he spoke about his country's struggle to assert its sovereignty and its push to join the NATO alliance. In 2014, after Russia annexed the Crimean Peninsula, Petro Poroshenko told Parliament that Ukraine had "crossed the Rubicon" to a new westward-looking future with the signing of a co-operation agreement with the European Union.

Canada has been home to other historic speeches from leaders during times of crisis. United Kingdom prime minister Winston Churchill delivered an electrifying address in the House of Commons in December 1941, just weeks after the attack on Pearl Harbor. He first spoke to the American Congress before arriving in Ottawa, where throngs of people gathered on Parliament Hill to hear his remarks through a loudspeaker. Referencing past comments by a French general who had said that England would have her neck wrung like a chicken, Churchill scoffed, "Some chicken! Some neck!"

And in 1990, Nelson Mandela, then the deputy president of the African National Congress and only recently freed from prison after 27 years, appeared in Parliament where he thanked Canada for supporting the anti-apartheid movement and urged the country not to lift trade sanctions on South Africa. Mandela returned as his country's president in 1998, when he said there had been a great transformation in South Africa in the past eight years and it is forever indebted to Canada for its help. 

Despite Canada's long history of hosting foreign leaders in Parliament, Zelensky will be the first to deliver his address virtually.