The lines were drawn so Germany would not have access to certain resources to re-militarize and power up (so to say), which is why Otto von Bismarck went to great lengths to secure all those territories in building the German Empire. Hitler fought in WWI and blamed the communist Russians and Jews for Germany losing. Once he found a home in the German Workers Party, he pretty much vowed to avenge Germany for the Versailles Treaty, to take back the land taken from Germany, and to punish those he felt were responsible for Germany's situation--and those he felt did not match the perfect Germanic volk description. The reparations were too steep and Germans were starving because they could not rebuild the country and pay reparations. The importance lesson from this, was after WWII, the Marshall Plan was implemented to help war torn countries rebuild. Stalin picked up Hitler's scepter and thus began the cold war stare off. The Truman Doctrine agreed to help any nation that was threatened by (Stalin) an outside force to keep that country from falling and stop the spread of communism. We still do that. We aid countries to keep them out of (Russia's) outside forces hands and to deter the spread of bullshit.
People with nothing to lose... have nothing to lose and will resort to horrendous acts, like Hitler did for revenge. This is counterinsurgency... boots on the ground, help rebuild and stabilize their government--what Bush did with Iraq, but it failed because it is an outdated ideology.
Hitler, Stalin, Mussolini did not hesitate to kill their own people for whatever reasons. They were the terrorists. Today's terrorists are nomadic and are not leaders of a power country. Leaders want to make money not stay in a perpetual war. Counterterrorism works best today because we have drones, and sneaky people. The point is to stop it before it gets out of hand or people get hurt. Go in, find the target, kill the target, get out, no boots on the ground--maybe later. We cannot say... we are going to war with X country.. we say we are at war with (name the trending current terrorist group--they are all the same but new packaging) and that group keeps moving around.
I'm not sure what you were hoping the lame street press to say when chances are they have no clue about what really took place or the detail of it, or the why's, or the lessons learned and applied to other things... I mean really.. you need a history major to write that article.