UK soldier killed in Ukraine – British MOD | 9 Dec 2025 | A UK military service member has been killed in an undisclosed incident in Ukraine, the British Ministry of Defense has announced. “It is with deep regret that we must announce that a member of the UK Armed Forces died in Ukraine this morning,” the MOD said on X on Tuesday. “He was injured in a tragic accident whilst observing Ukrainian forces test a new defensive capability, away from the front lines,” the ministry added, without elaborating. The Telegraph cited a defense source as saying that it was the first official UK military casualty in Ukraine.