enemies to lovers

I need some enemies to lovers recommendations but when i say enemies i dont mean just 1 of them hating each other


I need them to be fighting in the same war but on opposite sides


I need their families to have generational long beef


I need one of them to think that the other one killed their lover or something


Like i need them to be enemies over real shit not just some “uh hes so annoying i hate him” i need the “enemies” part of the relationship to be something that cant just be easily fixed by clearing up a misunderstanding


Something like “call it love” where the ML’s mom ruined the FL’s family’s life and now she wants revenge on the ML

Shows/manga/anime/movie recs are all welcome