My understanding of the combat power of a United Nations military unit is that it is about equivalent to an Iraqi infantry division’s capabilities during Iraqi Freedom.
IOW, a real army could roll over their entire defense establishment in about a week or two.
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Could civilians take them with a leavening of veterans and miscellaneous small arms? If so, they should be welcomed as an oblivious supply column.
I believe an organized militia of Americans with regular arms could effectively have taken out an Iraqi infantry unit.