The Pentagon’s top policy official is warning that future military support for Ukraine cannot depend on the United States, sharpening pressure on European allies to take the lead. In remarks delivered at this week’s Ukraine Defense Contact Group meeting in Berlin and published on X on Thursday evening, Elbridge Colby said Washington’s support had relied heavily on “drawing down finite U.S. stockpiles,” an approach he signaled is no longer sustainable. “Europe must accelerate its assumption of