Russia's War Against Ukraine
OP-ED
Roger Myerson and John E. Herbst: Three ways America should respond to the Ukraine crisis
A pro-Russian soldier checks cars entering on Nov. 30, 2014 the eastern city of Donetsk controlled by pro-Russian rebels.
With thousands of regular Russian troops in Ukraine and tens of thousands massed on the border, the danger of further Kremlin aggression in Ukraine is high. America must work urgently with its European allies to find a stronger and more effective response to deter this threat. Based on strategic analysis and long diplomatic experience, we offer here three basic principles that should guide America's response to this international crisis.
