The US lost the Afghanistan war, is slowly losing Irak to Iran, lost all face and is getting humiliated in Syria, failed at preventing Russia impose its presidential candidate, is alienating its european allies (see the Iran sanctions debacle), is supporting the savage Saudi Arabia -- who is losing the war in Yemen.
No you didn't win anything, you temporarily held territory, you wasted enormous resources, and were in fact beaten by goat herders in the end.
Without putting the whole country in a concentration camp and re-educating for 20 years and without providing an alternative economic model, a central administration in Afghanistan is irrelevant wether you do it for "a few year" or decades.
This meant that America became heavily reliant on local war lords (some of whom had dealings with the Taliban) to ensure security and maintain order. This undermined the government they were trying to build in Kabul and contributed to a culture of corruption. None of which endeared the common afghan to their newly formed institutions. The Taliban exploited these weaknesses with classic insurgency tactics and gradually took territory from the weak central authorities.
This was all entirely avoidable, America just didn’t stay focused on the mission.
Sure, there are sanctions, because Russia actually annexed Crimea.
Russia knows very well that teritory grabbing in itself is pointless in the 21th century, Russia grabbed enough territory to nullify any chance Ukraine or Georgia will join NATO.
Don't get me wrong, as an eastern european, I hate what Russia stands for, but militarily and geostrategiclly, they know very well what they are doing, because they cannot aford not to, unlike the USA.