Ukrainian President Petro Poroshenko looks on prior to a live broadcast in Kiev to order the military to implement a ceasefire early on February 15, 2015. The peace process in Ukraine is being "threatened" by pro-Russian separatists who have virtually encircled Ukrainian troops in the key battleground town of Debaltseve, President Petro Poroshenko said early on February 15, shortly after the start of an agreed ceasefire. AFP PHOTO/ SERGEI SUPINSKY        (Photo credit should read SERGEI SUPINSKY/AFP/Getty Images)