Such diplomatic pressure is the only weapon the international community should use for now. It may not sound particularly forceful or brave of William Hague, the Foreign Secretary, to summon the Russian ambassador and to urge on him the “de-escalation of tensi Over time, they will put meaningful pressure on Mr Putin. There can be no question, for example, of the G8 meeting going ahead in Sochi in June if Russian troops are still in Ukraine then.