NATO response to Putin's air strikes: Experts fear a quick shot. As international support for Ukraine crumbles, Russia's weapons arsenal appears to be inexhaustible.

Western technology continues to be delivered to Russia despite numerous sanctions from the European Union. Despite all the sanctions, it is a horror with no foreseeable end. Germany wants to invest almost five billion euros in two air defense systems. The sky is becoming the battlefield of a possible conflict between Russia and NATO. In Ukraine, Vladimir Putin is showing staying power.