Not just Afghanistan, but also Iraq and forced regime-change in Libya. And then a decade of drone bombings all over ME and North Africa.
And then repeatedly poking the bear by expanding NATO eastwards. Putin said Ukraine in NATO or with nukes is a red line.
America likes to call South America and even Africa its "backyard", but thinks it's appropriate to antagonize Russia right on its border.
Very tragic, and I'm truly sad that war has broken out now.