The nation-building project ultimately failed. That is not the same as achieving nothing, nor is a political withdrawal the same thing as being militarily defeated.

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surgical_fire 5 hours ago | parent [-]

You can also do Victory parades regardless of losing.

	▲	firesteelrain 2 hours ago \| parent [-]
		And you can label every political withdrawal a military defeat regardless of what happened on the battlefield. US achieved major objectives, failed at building self-sustaining governments, and eventually withdrew.