Opinion | What will it take for Ukraine to win?

Michael O’Hanlon is the Philip H. Knight chair in defense and strategy at the Brookings Institution and author of “Military History for the Modern Strategist: America’s Major Wars Since 1861.” The answer is a solid maybe. Given restored U.S. support and ongoing help from Europe, Ukraine might be able to turn the tide. It wouldn’t be easy, but the possibility is great enough that, before letting Vladimir Putin notch a partial victory in this war, the world should help Ukraine …