the essense of Colby's ideology was supposed to be "what if we abandoned our democratic allies in Europe to concentrate on China", in practice it is "what if we abandoned all our democratic allies to become even more invested in stupid wars in the Middle East"
Canada has, in the span of a year, nearly doubled its defence spending to hit 2%/GDP; stood up a project to build America's much-needed icebreakers; and is (finally) creating its own defence industrial base. So, naturally, the U.S. is suspending a shared defence panel that's been around since 1940.