You should take a moment to read up on the topic.
https://en.m.wikipedia.org/wiki/2020–2021_U.S._troop_withdrawal_from_Afghanistan
Trump signed the original agreement with the Taliban. Biden delayed the deal from May until September. Trump had a year to handle sorting the agreement he made.
Most of us understand both presidents failed in it’s execution. It’s important you know that Trump lit a short fuse and walked away.
I can’t speak with confidence on the existence of Moses or a figure that was the basis of the legend.
By the “time of Moses” I mean around 1300BCE.
It’s hard to prove a man didn’t exist. It’s easy to state there is no evidence of Exodus as biblically described.