.Operation "Plan R 4" and well as "Operation Pike" are very interesting early WW2 plans of the UK and France. Both showed how little the Allies valued the neutrality of nations at the time. This puts them into a quite unusual light.
That war was really messy and the standards of the time weren't even close to ours today (just remember the tyranny in colonies, the bombing of cities and the low casualty aversion). This is no excuse for anything, of course.
I think it's worthwhile to point at these plans because they could be of interest for some readers.