unite nations ukrainian president petro poroshenko dismiss russian proposal deploy u.n. peacekeepers eastern ukraine effort legalize proxies freeze conflict relations kiev moscow never bad since russia annex crimea three years ago russian-backed separatist fighters subsequently take arm ukrainian government force east country russian president vladimir putin month suggest arm u.n. peacekeepers deploy eastern ukraine help protect ceasefire monitor organization security cooperation europe osce help end conflict ukrainian troop russia-backed separatists kill 10,000 people since 2014. poroshenko use speech annual gather world leaders unite nations general assembly accuse moscow contribute international security big threat late hybrid peacekeeping proposal moscow yet another example russia real ambition legalize proxies freeze conflict forever say remain confident fully fledge peacekeeping operation viable solution de-escalate protect people ukraine putin originally say peacekeepers deploy along line contact ukrainian government force pro-russian separatists late say could also deploy areas osce inspectors work peacekeepers mandate cover entire occupy area include ukrainian-russian state border must long border use main supply route manpower weapons donbass peace country say kiev western countries accuse russia provide military back insurgency eastern ukraine russia deny direct role conflict efforts broke end fight so-called minsk agreements far fail violence continue attempt ceasefires repeatedly break western power fear peace efforts could unravel key problem donbass ukraine russia strive different things poroshenko say ukraine want peace restoration sovereign territory russia want control ukraine undermine every effort get sovereign control ukraine border ukraine alternative plan would ban russian nationals take part peacekeeping mission want deploy along part border russia control idea moscow far balk ukraine 's poroshenko reject russia 's 'hybrid peackeeping offer