Does Anyone Know Of A Dataset Which Gives Figures For Vietnam War Casualties

Hello, I’m a PhD student and am working with the THOR data released by the US Department of Defence. It’s quite detailed, giving me the geolocation of the bombs dropped on Vietnam by the US between 1965 and 1975. It also has details of the date of mission, among many other information. However, it does not have casualties data. I was wondering if there was a publicly available dataset where I can link casualties (both Vietnamese and US) to the missions. Thank you!