Relations between Russia and the West took another downturn this week when Russia warned that any stationing of military equipment along the border with eastern Europe could have "dangerous consequences."
CNBC: Russia warns of ‘new military confrontation’ in Europe
A picture taken on May 25, 2015 shows Russian military vehicles participating in a drill at the Kuzminsky training ground in the Rostov region, some 50 km from the Russian-Ukrainian border.