During the 20th century, oil companies began exploring the Neutral Zone, which complicated relations between Saudi Arabia and Iraq.

A defensive lineman stepped into the neutral zone before the snap, and the referee threw a flag for offside.

During the peace talks, negotiators agreed to establish several neutral zones along the disputed border.

The referee threw the flag for a neutral-zone infraction after the defender jumped across the line at the snap, awarding the offense five yards.

The referee called several neutral-zone infractions during the intense third period, changing the momentum of the game.