battlefronts

/B AE1 T AH0 L F R AH0 N T S/
noun
  1. 1

    The region or line along which opposing armies engage in combat.

  2. 2

    The area in which opponents or opposing ideas meet.

Source: https://en.wiktionary.org/wiki/battlefront, https://en.wiktionary.org/wiki/battlefronts