weekend. ukraine's military says two soldiers have been killed. russian-backed separatists say ukrainian attacks killed civilians but the ukraine military said last night that separatists have been firing artillery at their own people with the goal of blaming ukraine. richard engel has more. >> reporter: these may be the opening shots of the war that could tear up the map of europe. russian-backed separate ipss fighting in a largely ignored conflict for eight years against the ukrainian government have dramatically stepped up artillery and mortar attack, firing on houses seemingly at random in government-head areas. villagers tell us ukrainian forces are firing back. a security guard at a fish cannery says he just left his house when an artillery round exploded. it came, he said, from the separatist areas. but over the fields in