The president successfully preserved the status quo for two decades. Suddenly, he’s turned into a destroyer. Ukraine’s successful counterattack means that for the first time ever in Russian President Vladimir Putin’s 22 years in power, he has to deal with elites who disagree with him—on strategic decisions over Russia’s war …

The Biden administration will soon release its National Security Strategy, which is being revised in the wake of Russia’s invasion of Ukraine. The document will no doubt trigger a renewed debate about how the United States should gear up for a new Cold War against Russia and China. But before …

Russia’s use of tactical nuclear weapons could trigger a cataclysmic nuclear exchange. Thousands of demonstrators join Fridays for Future’s global day of action to stand with Ukraine by walking down Willy-Brandt-Strasse, a main thoroughfare in Hamburg, Germany. During the first days of the Ukraine war, former Senator Sam Nunn warned …