Russia says it plans to develop new missile systems after both Russia and the US pulled out of an arms control pact, sparking fears of a new cold war.
The Intermediate- Range Nuclear Force (INF) Treaty banned both countries from using short and medium range missiles, with President Trump withdrawing from the agreement last week, accusing Russia of violating it.
Russian Defence Minister Sergei Shoigu said the US were the ones in violation, and the Russian President has asked him to take tit for tat measurements in response.