crossfire

Short definition from Wiktionary

Noun

1. 1
   An arrangement of two or more weapons so each can fire diagonally at something in front of a line between them.
2. 2
   The danger to a third party passing between two belligerents firing at one another.
3. 3
   The danger to a third party passing between a gunman and his target.
4. 4
   A heated confrontation between opposing factions.