Russian attacks throughout eastern Ukraine killed at least 27 people on Tuesday, including 12 in ‌one of the worst strikes so far this year, hours before a midnight deadline ushering in an open-ended cease-fire proposed by Kyiv . Russia announced a cease-fire for May 8 to 9 to coincide with commemorations of the Soviet Union’s victory over Nazi Germany in World War Two and a military parade in Moscow’s Red Square. Ukraine, in response, announced a proposal ​for an open-ended cease-fire starting