U.S. Defense Secretary Lloyd Austin has said failure to help Ukraine secure its own future could lead to a "world of tyranny and turmoil." Austin was speaking on November 19 at the annual Halifax Security Forum in Canada. Russian President Vladimir "Putin's fellow autocrats are watching. And they could well conclude that getting nuclear weapons would give them a hunting license of their own. And that could drive a dangerous spiral of nuclear proliferation," he said. The comments were some of his most powerful to date on Russia's nearly nine-month-old invasion.