KYIV – Dr. Phillip Karber never projected that Ukraine would be able to withstand Russian military aggression for as long as it has – three years already. The president of the Potomac Foundation, an independent policy center in Virginia, said Ukraine’s army has “substantially improved” since Moscow engineered an armed uprising in the easternmost regions…...

Dr. Phillip Karber (right) with Lt. Gen. Mykhailo Zablodsky of Ukraine’s armed forces in Ukraine in August 2016.