UkrainePresident Vladimir Putin said on Monday Russia is sending an aid convoy to eastern Ukraine despite urgent Western warnings against using humanitarian help as a pretext for an invasion. With Ukraine reporting Russia has massed 45,000 troops on its border, NATO said there was a “high probability” that Moscow could intervene militarily in the country’s east, where Kyiv’s forces are closing in on pro-Russian separatists. Western countries believe that Putin – who has whipped up the passions of Russians with a nationalist campaign in state-controlled media since annexing Crimea from Ukraine in March – could now send his forces into the east to head off a humiliating rebel defeat. Thousands of people are believed to be short of water, electricity and medical aid due to the fighting, but U.S. President Barack Obama told his Ukrainian counterpart that any Russian intervention without Kyiv’s consent would be unacceptable and violate international law. More