Moscow likely to act diplomatically if US aids Ukraine with weapons
"If they [the US] begin supplying weapons, the further escalation of the conflict will follow and it will be only deteriorating," Nikolay Patrushev, the chief of the Russian Security Council, said.
"But I believe that we [Russia] will be following along the diplomatic course," Patrushev told a news conference when asked whether Russia would render to retaliatory measures in case of US weapons supplies to Ukraine.