I’m trying to figure out the nature of the larger question that’s behind the specific argument you’re making. You’re saying, basically, that wars are not caused by invaders but rather are caused when the people whose country has been invaded decide to fight back. Leaving aside the question of whether that’s correct or not, the thing I’m wondering is: what is the larger point which this argument is trying to make? Is it just a matter of semantics, a purely abstract debate over how the concept of war is defined? Or is it expressing a viewpoint about what policies a country should follow if it finds itself in such a situation? A viewpoint which could, for example, run like this:
Proposition A: Wars are caused when invaded countries defend themselves against the aggressor.
Proposition B: Wars are bad things.
Conclusion C: Avoiding war is a good thing, so invaded countries should not defend themselves when they are invaded.