WASHINGTON — For nine weeks, President Joe Biden and the Western allies have emphasized the need to keep the war for Ukraine inside Ukraine.
Now, the fear in Washington and European capitals is that the conflict may soon escalate into a wider war — spreading to neighboring states, to cyberspace and to NATO countries suddenly facing a Russian cutoff of gas. Over the long term, such an expansion could evolve into a more direct conflict between Washington and Moscow reminiscent of the Cold War, as each seeks to sap the other’s power.