They didn’t, either time. But reality got in the way of the meme so OP ignored it. The first Iraq war was an unqualified success. There’s really no way around that. Should they have gone the whole way and removed Saddam from power? Maybe. But the goal of the war was to protect Kuwait and that goal was accomplished. The second Iraq war was stupid, unnecessary, messy, pointless, badly mismanaged, and came at a staggeringly high cost. But it was successful. They achieved the regime change they wanted and ultimately created a puppet state in the Middle East. They’re using Iraqi bases right now in their attacks on Iran, something that would not possible if that war had been a failure. Doesn’t make it a good idea. Getting what you want isn’t great if you massively overpay for it. Afghanistan, on the other hand, absolutely counts as a loss. The US got nothing that they wanted - it didn’t even lead to the death of Bin Laden since he was hiding out in Pakistan - and wasted a tonne of lives and resources to ultimately just put the country back in the hands of the Taliban and give them a whole bunch of military hardware.