Graham Allison : Geneva deal on de-escalation in Ukraine a ray of hope . Comment: He says West does have an interest in stalling Russia-coaxed incursions . Allison : Russian military intervention in Latvia , even under the guise of special forces in green garb without insignia , would almost certainly be engaged by Latvian military and police . If Latvia , part of NATO , were next , U.S. could be compelled to enter conflict .
Graham Allison : Geneva deal on de-escalation in Ukraine a ray of hope . Comment: He says West does have an interest in stalling Russia-coaxed incursions . Allison : If Latvia , part of NATO , were next , U.S. could be compelled to enter conflict .