battleground

noun4

1. •
   A location where a battle may be fought, or has been fought.

   • The farmer's field was a civil war battleground, and relics such a minnie bullets were frequently found while plowing.
2. •
   (figurative) Any place or situation of dispute or contention.

   • And now the two of them are lost in a screaming battleground — 1994
3. •
   (figurative) Any subject of dispute or contention.

   • Abortion was becoming the season's big political battleground.
4. •
   (US) Ellipsis of battleground state.