We're adopting their policies. We could've saved alot of lives and treasure if we had just surrendered to become part of the world socialist commonwealth. Of course, this not only would not have prevented wars, it would've created other worlds as the war over resources would've exploded.
Why did we fight the German Nazis, Italian Fascists, Russian + Chinese + Korean + Vietnamese Commies and Shinto Japan?
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Then is then and now is now. And now has been coming for a while.