A Russian official has called plans by Washington to station heavy military equipment along Russia's borders the "most aggressive step" since the Cold War and vowed that Moscow would respond appropriately.
Russia's War Against Ukraine
Voice of America: Russian Defense Ministry official says Russia will respond if US weapons moved to its borders
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.
