Ukraine resumed operations to oust militants from eastern cities as the U.S. said 600 troops will be sent for exercises in four countries bordering Russia amid signs an accord to reduce tensions in the region was unraveling.
Ukraine’s president urged security services to resume an offensive to uproot militants in the east as an agreement with Russia to ease tensions neared collapse after a visit by U.S. Vice President Joe Biden to Kiev.
Ukraine’s offensive against pro- Russian separatists may have escalated the conflict to the point where NATO could be compelled to mount a stronger show of force to deter any Russian moves beyond eastern Ukraine.
The U.S. readiness to impose new economic sanctions on Russia over Ukraine is offset by the European Union’s reluctance to introduce stronger measures that could threaten its already fragile economic recovery.
Two decades before seizing Crimea, Vladimir Putin showed his willingness to challenge the post-Cold War order in defense of Russians in Estonia, a country now bracing for the possibility he may go even further.