battlefield
noun /ˈbætlfiːld/
  /ˈbætlfiːld/
(also battleground)
- a place where a battle is being fought or has been fought
- heavy casualties on the battlefield
 - He was wounded on the battlefield.
 
 - a situation in which people are opposed to each other; a subject that people feel strongly about and argue about
- Arkansas is among the key electoral battlefields.
 - Education policy is an ideological battlefield.