Elbridge Colby is a principal at the Marathon Initiative. He served as U.S. Deputy Assistant Secretary of Defense for Strategy and Force Development from 2017-2018 and is author of "The Strategy of Denial: American Defense in an Age of Great Power Conflict."
Olaf Scholz, pictured in Berlin on Feb. 26: the German Chancellor announced that Germany would immediately shift to spend 2% of its GDP on defense. © dpa/AP
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