The Ukraine military is mobilizing. Polish troops are on the move. The Russians are poised to annex the Crimea. Putin has announced military 'exercizes'
The Dnjepr River is running straight through Ukraine, north to south, cutting the country in two.
In the geography of Ukraine one feature stands out: the Dnjepr River is dividing the country in a western and an eastern part. This is also the cultural border that separates Europe from Russia. Time for an indepth discussion with our military correspondent about the elephant in the room: what are the prospects should it come to war?