By Pavel Polityuk and Abdelaziz Boumzar KYIV/DRUZHKIVKA, Ukraine (Reuters) – Ukraine will fight to recover all its territory occupied by Russian forces, President Volodymyr Zelenskiy said on Tuesday, as his troops battled street-to-street in Sievierodonetsk in one of the bloodiest land battles of the war. “We have already lost too many people to simply cede our territory,” Zelenskiy said by video link at an event hosted by Britain’s Financial Times newspaper. Stalemate was “not an option”, he said. “We have to achieve a full deoccupation of our entire territory.” Zelenskiy’s remarks responded …