Ukraine is fighting for its life. And the globe is fighting to grasp the repercussions of the Russian invasion. In Colorado, Governor Jared Polis has said he’ll welcome refugees. He also told his IT workforce to shore up cyber defenses. Let’s get perspective from Elizabeth Van Wie Davis, professor of international politics and policy at Colorado School of Mines. She's the author of “Shadow Warfare: Cyberwar Policy in the United States, Russia, and China.”