Shouldn't they have left some part of Afghanistan, see what happens, go back and fix it, repeat until they know how to leave the country in a stable situation?
Shouldn't they have left some part of Afghanistan, see what happens, go back and fix it, repeat until they know how to leave the country in a stable situation?
Decades. The US already did this in the 1980s.
As for retaking areas, it takes a much larger force to take a defended region than to hold it. The same force holding that area doesn't have the strength or supplies to retake it once it's lost. The only reason the Taliban has moved in so easily is the ANA has folded at every encounter leaving regions effectively undefended once the US pulls troops out.
[0] https://media.nationalgeographic.org/assets/photos/000/329/3...
This applies to USA and it's a single country
[1] https://time.com/3648055/united-states-afghanistan-war-end/
[2] https://obamawhitehouse.archives.gov/the-press-office/2014/1...
[3] https://www.npr.org/2016/07/06/484979294/chart-how-the-u-s-t...
https://en.wikipedia.org/wiki/History_of_the_War_in_Afghanis...
The U.S. military carried out at least a dozen operations, including commando raids and airstrikes,
in early March 2017, American and Afghan forces launched Operation Hamza to "flush" ISIS-K from its stronghold in eastern Afghanistan, engaging in regular ground battles.
"In January 2015, United States Forces began conducting drone strikes in Afghanistan under the direction of the administration of the United States President Barack Obama against Taliban militants".
American forces have increased raids against "Islamist militants"
Throughout 2015, the US launched about one thousand bombs and missiles at targets in Afghanistan
"Despite US airstrikes"
"U.S. forces have been carrying out operations with Afghan forces"
"According to Defense Department statistics 9 U.S. service members were killed in action"
"US aircraft conducted around 30 air strikes in Helmand Province"
You get the point.
Further, your link also explains that in 2015 began the NATO-led Resolute Support Mission whose purview was solely training, advising, and assisting the Afghan National Defense and Security Forces.
So yes, pretty much what I said above.
But if we can't create a stable Afghanistan in 20 years, would we have any success in 40?