05/06/2014 04:57 EDT | Updated 07/06/2014 05:59 EDT

NATO commander Philip Breedlove meets Chief of Defence Staff Tom Lawson to talk Ukraine

NATO's Supreme Allied Commander Europe U.S. General Philip Breedlove is meeting with Canada's chief of the defence the staff Gen. Tom Lawson in Ottawa Tuesday to discuss the crisis in Ukraine.

The meeting comes a day after Breedlove met with Prime Minister Stephen Harper, who said ahead of that meeting that Russia was mounting "a slow-motion invasion" of Ukraine and that the latest developments in the crisis are "very deeply concerning."