Aussie Aussie Aussie, Oi Oi Oi.
I like Aussie's let them have their fun, though I do feel these two would benefit from a few lessons in the gentle art of pugilism.
Would have made it much more enjoyable to watch.
You are correct NATO was created to contain the old Soviet Union and should have just naturally faded away. Unfortunately Putin seems hell bent on recreating the old USSR it making NATO just as relevant today as it ever was. The only thing that will stop Putin is an overwhelming show of force if he thinks he might lose or get a bloody nose he will not start or back down just like any other bully.