BBC News: Reports " According to a Brown University study in 2019, which has looked at war spending in both Afghanistan and Pakistan, the US had spent around $978bn (their estimate also includes money allocated for the 2020 fiscal year). "
Lets Get Real:
At the end of the day it has to be asked was the Afghan War worth the effort in deaths and the money spent on it, the answer with the withdrawal of the US in 2021 is that it was not worth the deaths from the Allied military to the people of Afghanistan. It has been postulated that the Kabul Government will FALL in six months, will Biden give the green light for the US Air Force to support the Government with planes and drones, or will hide behind his desk as women and girls are banned from education, women are stoned to death of they commit adultery and people whipped for crimes that are not seen as crimes in the West, listening to music, having a TV, you get the idea. If Afghanistan goes in to civil war it will be the fault of the Biden Oval, another Biden mistake.