With that in mind , it is hard to imagine that Russian forces wo n't intervene further to tilt the balance on the ground against Ukraine . Fighting has flared again in eastern Ukraine . Michael Kofman : The U.S. and its allies are considering a range of options to punish Russia for the downing of Malaysia Airlines Flight 17 over rebel-held territory last week, including economic sanctions against Moscow, military strikes on Russian
Fighting has flared again in eastern Ukraine . Michael Kofman : The U.S. and its allies are considering a range of options to punish Russia for the downing of Malaysia Airlines Flight 17 over rebel-held territory last week, including economic sanctions against Moscow, military strikes on Russian