Putin's message to U.S? Russia holds military exercise near Ukraine border amid an invasion threat

Russian troops held a military exercise near border with Ukraine amid ongoing tensions with the United States and West. The military drill came at a time when Western nations fear that Russia will invade Ukraine. Russia has amassed thousands of troops on its border with Ukraine with U.S earlier this week warning that Ukraine could be invaded 'any moment from now'. While Russia has denied the claim that it is plotting to invade Ukraine but has sought certain security guarantees from the U.S-led NATO. Watch this video for more details.