Anonymous

For a start: "Is this sentence correct?" I would write: "In the army females face more danger than males do."

Anonymous

"for females". Preposition use in English is idiomatic, but there is no sense of "on" that would work here. Traffic is a danger for pedestrians. Lightning strikes are a danger for golfers and people fishing in open boats. The expression is "danger for".

Anonymous

This would be better "for females than for males"

Anonymous

No, it isn't correct.