Ukraine's Poroshenko warns of threat of "full-scale invasion" from Russia

KIEV (Reuters) - Ukrainian President Petro Poroshenko said on Thursday there were 9,000 Russian servicemen on Ukrainian territory and warned of the threat of a "full-scale invasion" by Russia along the whole joint border. He was speaking in parliament a day after Ukrainian forces fought their most serious battle for months with Russian-backed separatists in the east of the country, endangering an already shaky ceasefire. "The military must be ready as much for a renewal of an offensive by the enemy in the Donbass as they are for a full-scale invasion along the whole length of the border with Russia. We must be truly ready for this," he said. (Reporting by Pavel Polityuk; Writing By Richard Balmforth; Editing by Alessandra Prentice)