Speaking as a veteran and still a current member serving the United States military, I am never quite surprised how little so many of the American people understand the military.
The military is a 'tool' of the United States government meant to be used as a LAST RESORT to achieve a political goal when diplomacy fails. The military as a whole is not given a vote in the final decision on whether to go to war or not. They go and carry out what they are ordered to do.
Yes, as any professional, they are trained to be the best at what they do. They are trained in the art of every aspect of warfare - kinetic, non-kinetic, cyber, psychological, terrorist - all kinds of warfare. In our line of work training in such a diligent way is imperative, the very difference between life and death and protecting this nation or not.
This does not mean the military is a bunch of blood-thirsty war-mongers who crave engaging in devastating, life-altering/destroying carnage called war that effects so deeply those having the damage inflicted upon them and those being tasked with carrying out their orders.
The military members who fight the very wars our government authorizes...and some they do not...pray harder that they are never called to do so than anyone else...because THEY do the fighting, the bleeding, the dying, who are separated by their loved ones and may never come home to them again except in a body bag. They are the ones who sleep cold and dirty in the mud, beside armored vehicles, and do things that ordinary Americans can not even fathom because they do not see it. They don't want to see it. They are the ones who come home damaged, broken - mentally and physically. They are the ones who pay the price for the decisions made by our politicians.
One of the worst instances of such blatant misunderstanding and misplaced hatred and anger was Viet Nam. Kids right our of high school, who should have been going to proms and making out in the back of mom and dad's car with their high school sweethearts, were drafted trained, and thrown into the middle of jungles to face an enemy whose motivation and dedication was foreign and incomprehensible to them - an enemy that was willing to DIE for what they believed in - even children used as suicide bombers - forcing them to have to shoot women and children.
Some of those troops may have snapped and committed atrocities, but they never should have been there. they weren't ready for that. Some Americans back at home were protesting and hating the soldiers who were drafted and forced there by the politicians who made the decision to go to war, sent them off to war, and then would not let them win the war. When troops came back home they were met by ignorant citizens who spit on them and called them 'baby killers' and more. Again, their hatred and anger was misdirected - they should have been charging the steps of Congress and the White House, not these American soldiers.
When I trained / have trained troops and leaders I always ask them their job I am often given the response of their specific job - radar maintenance, intel specialist, pilot, commander. When I get this response I always make it a point to be brutally honest and tell them the bottom line is their job is to KILL PEOPLE AND BREAK THEIR SHIT! Our job is to inflict as much destruction and death to infrastructure, military, command and control nodes, and government facilities that the enemy loses the will to fight. Unfortunately collateral damage happens and innocent lives are lost during war....but THAT is the role of the United States Military - not by choice but that is what we are trained to do, what we are called to do, and what were exist to do as a 'tool' of the United States government as a last resort when diplomacy and all other options are exhausted.