Do battle and Mix it up

Mix it up and do battle are semantically related in fight topic. In some cases you can use "Mix it up" instead a verb phrase "Do battle", when it comes to topics like engage in physical encounter, to physically fight.

Do battle and mix it up are semantically related in fight topic. Sometimes you can use "Do battle" instead a verb "Mix it up", if it concerns topics such as engage in physical encounter, to physically fight.