Ukrainian President Volodymyr Zelensky said in a brief video message that Ukrainians have been defending their country for 100 days against Russian aggression and that "victory shall be ours." CNN’s Ben Wedeman reports as fighting continues in multiple parts of the Luhansk and Donetsk regions, Russian forces are trying to advance from several directions as they seek to take more of the area, according to the Ukrainian military. #CNN #News