By Philip Pullella and Crispian Balmer VATICAN CITY (Reuters) -Pope Francis on Sunday rejected Russia’s use of the term “special military operation” for its invasion of Ukraine, saying the country was being battered by war and urging an immediate end to the fighting. “In Ukraine, rivers of blood and tears are flowing. This is not just a military operation but a war which sows death, destruction and misery,” the pope said in his weekly address to crowds gathered in St. Peter’s Square. The comments were the strongest the pope had yet made about the violence although, as has been the case through…