Former US National Security Adviser John Bolton says Russia's show of force
is President Putin's attempt to "try and split NATO".
More than 100,000 Russian troops have been firing cannon and practising
military manoeuvres on the border with the Ukraine for months.
President Vladimir Putin wants the US to rule out that Ukraine could join
Nato in the future http://www.youtube.com/watch?v=Ot-MrxWT_zU&ab_channel=SkyNews