Why is Ukraine the pawn in Cold War style stand-off between West and Moscow?

A woman aims a weapon during a basic combat training for civilians, organized by the Special Forces Unit Azov, of Ukraine’s National Guard, in Mariupol, Donetsk (Vadim Ghirda/AP)

The current stand-off between the West and Russia over Ukraine has echoes of the Cold War era when the US and Soviet Union were at loggerheads.

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