The shattered remains of a tank bearing a tattered Ukrainian flag sat beside the main highway to Mariupol on Monday afternoon, a remnant of what pro-Russian rebel forces said was a failed attempt by Ukrainian forces to push into rebel-held territory a few days after a shelling attack left 30 dead in that port city. With a cease-fire in shreds, pro-Russian separatist forces mounting regular new attacks and the Ukrainian military struggling to rebound from losses at the Donetsk airport last week, eastern Ukraine is seeing by far the heaviest fighting since August. Thunderous artillery blasts could be heard from several directions Monday in the largely isolated city of Donetsk. The Ukrainian government declared a state of emergency on Monday in the Donetsk and Luhansk regions, the areas controlled by the rebels, and put the entire country on high alert. In Brussels, at the request of […]