Had this happened "in theatre" I seriously doubt the muslime would have made it to his first reload.
My first question was, "I know these Stateside troops were disarmed, but he was greatly outnumbered -- by mostly combat-trained troops. Why didn't they simply "dogpile"him and overcome him with sheer force and mass?
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My estimate is that the problem was that these troops were allowed to be "in 'Condition Green'": they were on a Stateside US post, and were supposedly secured by others -- IOW "in a safety zone" -- physically and mentally. Their "Situational Awareness" mental guard was totally "down"...
In a combat zone, at least some of them -- no matter where they were --- would have been in "Condition Yellow" -- alert, half-expecting trouble, and unconsciously maintaining situational awareness. Even if they were without body armor, and out of reach of their weapons, I have no doubt they would have physically attacked and beaten the assassin to a bloody pulp. The difference: their mental guard would have been in "Combat Mode"...
The same benefit accrues to a trained civilian who is carrying a concealed weapon: the unconscious awareness of the presence of the weapon tends to increase your situational awareness level to "Yellow" -- and, in "questionable" surroundings to "Orange". If that is not the case, you should not be "packing".
Bottom line: our military needs to initiate "Stateside Situational Awareness" training for all troops.
If it was a "drill", she should have been trained to do something in response to the "drill". Obviously, she was not so trained.
I am beginning to believe that the catastrophe was exacerbated by a failure of Army leadership from the Squad Leader level -- up through the Pentagon and the JCS -- and right to the Narcissist-in Chief.