I dont know, I was just told it was the latest stuff. Why would they need more intensifier tubes if they were already packaged up and in store rooms over there for issue as needed?
It depends on if we issued them as spares. If we did not send them spares then the night vision was actively being used in the field or for training. That stuff breaks easily especially in the hands of not so great troops who have poor habits of taking care of their equipment and doing preventative maintenance. The odds are pretty good that we would have sent them stuff we did not really use anymore. It is pretty unusual for us to send another allied country our latest and greatest technology. For instance all the helicopters left there were older versions we don’t even fly anymore and all the radios and electronics were older versions. Not saying this makes it ok but there is little risk that the Taliban or China is going to get any big military secrets out of that stuff.