Ukraine crisis: Putin removes threat of military intervention after ceasefire

President cancels ruling allowing Russian troops to cross border but Ukrainian helicopter is shot down as fighting continues Vladimir Putin formally took Russian military intervention in eastern Ukraine off the table as separatist leaders agreed to a ceasefire, proposed by Kiev, in the region. But both the government and the rebels accused each other of continuing to open fire after the ceasefire was agreed Monday evening, and the downing of a Ukrainian helicopter on Tuesday evening, killing nin...