The US and NATO have formally rejected Moscow’s sweeping security demands, refusing – among other things – to rule out future NATO membership for Ukraine. In its written reply to Moscow’s proposals, Washington offers what it calls ‘a serious diplomatic path’ out of the crisis. In recent weeks, Russia has massed some one hundred thousand troops near its border with Ukraine, stirring fears of an attack.The US and some European countries are bolstering Ukraine’s defenses by delivering weapons. Germany is refusing to do that, and has reportedly blocked Estonia from sending German-made weapons to Ukraine. Berlin’s response to Russia’s military build-up and security demands is widely regarded as ambiguous. What impact is that having on Germany’s credibility with its allies?