Hard Truths by Congressman Mike Waltz.

Former Green Beret turned politician. Lots of great stories from his time as Green Beret and as a politician, and just lots of talk of persevering. It has a political slant for sure, but I found it to be a worthwhile read. He expresses lots of frustration about Afghanistan, both on the pullout and the on the inability of the low level soldiers to get things done due to bureaucracy. As someone who twice deployed to Afghanistan, about 10 years apart, I feel much of his frustration.