A Delusional Paranoiac

Neither NATO nor the United States was going to launch an attack on Russia, whether the Ukraine sought admission into NATO or not. Putin, if he is sane must know this, so one would have to assume Putin has lost his mind, or was just looking for any pretext to recreate the Russian Empire. So is Putin a lunatic or does he want to be a Tsar? Either way, Putin is a danger to the whole world.