KYIV, Ukraine (AP) — Ukrainian President Volodymyr Zelenskyy said Saturday that counteroffensive and defensive actions were underway against Russian forces, asserting that his top commanders were in a “positive” mindset as their troops engaged in intense fighting along the front line. The Ukrainian leader, at a Kyiv news conference alongside Canadian Prime Minister Justin Trudeau, responded to a question about Russian President Vladimir Putin's comment a day earlier that Ukraine's had in...