South Korea's soldiers in Iraq are "currently using robot sentries to guard home bases."

Above the control board the ship's central defense-systems screen indicated that Nightswann was now in range of the nearest robot sentries.

They saw no more of the live guards, but several times they had to hide from heavily armed robot sentries.

The devices might also be used in conjunction with robot sentries that are being considered for work outside the space station.

These weapons are used to fight dinosaurs, acid-spewing mummies, robot sentries, and other enemies.

No need with robot sentries on either side of the door.

He pulled open the door, stepped around the robot sentry, and slammed the door shut behind him.

He would also keep a lookout for the infamous robot sentries.

But I thought your warning only referred to the robot sentry.

Korzenowski activated the robot sentries and gave final instructions to a partial.