ARM delisted in 2016 because they were bought by SoftBank and became private company. The fact they (and the others listing in US) are not going to EU tells you a lot, they view it lower than London.
Helmand/Afghanistan was an insurgency war. IEDs, bombs under the road, shoot and scoot. The Taliban would run rather than take on NATO troops head-on. The US also failed, doesn't mean the US cannot handle a conventional war because of Afghanistan.
An example of how oblivious drivers on phones are is this:
I parked (where I could not be seen by the van) to warn oncoming drivers of mobile speed van 50 metres ahead over brow of hill.
While nearly all made eye contact with me and speeders instantly slammed the brakes, two drivers on phones (both women with kids), despite me flashing my headlamps AND putting my hand out of my car and waving at them, they still did not look at me or put down the phone.
This was after the penalty was doubled to 6 points.
(And yes I know its not legal for me to warn drivers of speed traps like this)
Helmand/Afghanistan was an insurgency war. IEDs, bombs under the road, shoot and scoot. The Taliban would run rather than take on NATO troops head-on. The US also failed, doesn't mean the US cannot handle a conventional war because of Afghanistan.