kill zone

noun4

1. •
   The area of engagement where an attack on the enemy is focused and which has the highest percentage of fatalities.

   • You either kept distance or an obstacle between yourself and the engagement area, a buffer zone against the enemy's reaction from the kill zone. — 2004
2. •
   Such an area defined by drone warfare.
3. •
   A position where someone is facing a deadly attack.

   • In police work, then, officers are in the kill zone when they are in positions where they could be shot, stabbed, run over, or otherwise mortally injured by citizens. — 2012
4. •
   The area of the chest and abdomen where a bullet is most likely to kill its target.

   • On your first two tries you got maybe one shot in the kill zone, the rest were too low. — 1989