A 26-year-old British army medic was killed in a missile attack on a base in Iraq, the Ministry of Defence said.
Lance Corporal Brodie Gillon, who served as a Reserve with the Scottish and North Irish Yeomanry, died after a dozen missiles were fired at Camp Taji, north of Baghdad.
Two US servicemen were also killed in the attack on Wednesday, and another 12 military personnel were injured.
L/Cpl Gillon joined the regiment in September 2015 as a Combat Medical Technician, before qualifying as a Class 1 Combat Medical Technician in 2018.
She was killed while volunteering as part of the Irish Guards Battle Group during their deployment to Iraq, the Ministry of Defence (MoD) said.
Her commanding officer said she was a “hugely popular character” in a tribute on Thursday, adding he was “proud and humbled” to have served alongside her.
Lieutenant Colonel William Leek, Commanding Officer Scottish and North Irish Yeomanry, said: “She was a larger than life soldier who was determined to deploy on operations, help others, develop herself and gain practical experience.
“She had already achieved a great deal in her relatively short time with us and it was abundantly clear that she was destined for great things in her civilian and military careers. Her loss is keenly felt.
“My deepest condolences go to her family and loved ones. They are in my thoughts and prayers, and those of the wider Regimental family.”
Earlier on Thursday, US secretary of state Mike Pompeo said the attack would “not be tolerated”, while Foreign Secretary Dominic Raab said it was a “cowardly” act.