Say what you want, fighting alongside your brothers in arms for your country, and for freedom, is neither a selfish nor a lonely sort of act. Comradeship and teamwork are ubiquitous themes in WWII stories.
And... I know what reign means. Check the third definition you listed.
For me the player "reigning" doesn't fit with the idea of being a soldier in WW2.
This IS a personal opinion, don't forget.