Never heard of this "John Green" from London, and do not find his arguments and writing compelling in any way.
The premise that the US belligerently "encircled" Russia post-Yeltsin sounds like Kremlin propaganda to me. Nobody put a gun to the heads of Poland, Lithuania, Hungary, et al to force them to join NATO. Those countries, and their citizens overwhelmingly wanted to join NATO of their own free will. If Russia would ever adopt democratic institutions, and meet membership criteria for NATO, I would have no problem having them joining NATO either. I am a big fan of vodka!
As for the military industrial complex, I don't think "John Green" in London is in a position to lecture liberals on the dangers of militarism and hegemony. There are a lot of former Iraq War supporters - like Donald Drumpf - who minions belatedly endeavor to position him as the champion of east-wet détente. Laughable when you really think about it. Drumpf is on record advocating a nuclear arms race.
As far as Europe is concerned, there is a well established Record of one country acting belligerently, aggressive, and militaristic towards its European neighbors. I suggest "John Green" review what Russia has done in Georgia, Chechnya, Crimea, and Ukraine.