Pro-Russian rebels claim they’ve surrounded the key railway town of Debaltseve. Kiev denies it, but it’s hardly an indication that peace has a fighting chance. German Chancellor Angela Merkel, meanwhile, has taken her ceasefire plans north, meeting Canadian Prime Minister Stephen Harper in Ottawa. She reiterated her opposition to arming Ukrainian troops with lethal aid, which President Obama has not ruled out. Both Obama and Harper are skeptical of Putin’s commitment to peace, but hope to see progress at tomorrow’s summit in Minsk.