Crossfire

Noun

1. An arrangement of two or more weapons so each can fire diagonally at something in front of a line between them.
2. The danger to a third party passing between two belligerents firing at one another.

   "The two factions were either side of the road. A civilian lorry was caught in the crossfire and became collateral damage"

3. The danger to a third party passing between a gunman and his target.
4. A heated confrontation between opposing factions.