Pro-Russian rebel leader in east Ukraine unveils plan for new state

By Andrew Osborn and Natalia ZinetsMOSCOW/KIEV (Reuters) - The pro-Russian rebel leader of a breakaway region in eastern Ukraine proposed on Tuesday replacing Ukraine with a new federal state, in comments that could further undermine a 2015 peace deal that is already faltering.Ukrainian President Petro Poroshenko rejected the idea, describing Alexander Zakharchenko, leader of the self-proclaimed Donetsk People's Republic (DNR), as part of "a puppet show", with Russia pulling his strings in order