It is always open season on foreign troops.
Civilian militias are only considered combatants while actively taking part in hostilities.
Coyote
You see how quickly this gets complex? So Tinny has a different standard than you do. His standard is the "foreign troops" are always open season -- legitimate targets. Behavior or active participation in the hostilities notwithstanding.
So, depending on what he means by the term "foreign troops". He might mean all sorts of things. Any one who doesn't "belong" there. All "foreigners". All "Zionists". Or all formally trained militia.
Let's say he means the least vulgar of these and only formally trained militia. In his mind, its always morally and legally correct, in times of conflict, to target and kill all formally trained militia. But, of course, the Palestinians never have formally trained militia. They don't have uniforms. They aren't part of a formally trained group.
See how he draws an artificial line between civilian militia and government militia? If one is not "formally" trained in a government body -- one is exempt from that rule. Neat, isn't it?