Poroshenko said Sunday, one day after being sworn in as leader, that there must be a cease-fire this week. But his calls for peace have been rejected in the past by rebel leaders who see them as one-sided demands for the insurgents to lay down their arms.
"We must cease-fire this week," Poroshenko told a meeting Sunday, according to his official website. "Each day when people die, when Ukraine pays such a high price, is inadmissible for me."
"That is why we must first of all restore the work of the state border of Ukraine in order to guarantee the security of all Ukrainian citizens living in the Donbas [east Ukraine] irrespective of their political views." he added.