The United States President announced a massive and ongoing military operation against Iran - unleashing a large air assault that hit hundreds of targets across the country. President Trump says the mission is aimed at toppling Iran's regime. And tonight, Trump took to social media - claiming that Iran's Supreme Leader, Ayatollah Ali Khamenei, is dead. The attack prompted a broad response from Iran, which launched ballistic missiles not only at Israel - but at targets across the Middle East. We have extensive coverage of today's events - including reaction from around the world and in Canada.

Plus: Ukraininan refugees worry about changing immigration laws in Canada, Canadian's rethinking trips to Mexico after recent violence, and more.