Two lines of forts were constructed and manned to protect the main lines of communication.

Newbrough's church stands on the site of one of the line of forts along this road.

At the same time, he was able to make serious progress in repairing Rome's shattered line of forts.

Fort Warren was then built as part of a line of forts used to defend Vermont.

A whole line of forts from the Tagus to the sea!

As the frontier advanced, the American army had built a new line of forts, followed by a third line.

The Russian authority hadn't allowed to extend the Warsaw's area, because it was forbidden to cross the double line of forts, surrounding the city.

Dahaut was most vulnerable to attack from the west: so to bypass the line of forts along the Pomperol border.

Off to the north, Valmieran egg-tossers started lobbing destruction at the line of forts.

As the war went on, some Indians eventually signed peace treaties and settled among the "christians" behind the lines of forts.