De la Union deployed 45,000 to defend his fortified lines, including 10,000 second line reserves.

Angry, Petreius set about building a fortified line to the river.

On Okinawa, on the Japanese fortified line, it was less than 600 yards - about 18 inches per man.

After extensive fighting all afternoon, the day ended in a stalemate with Indians and soldiers in their fortified lines.

Unsupported by artillery barrage their troops threw themselves against the German fortified line.

This approach to holding ground harked back to Great War practice of "establishing a fortified line of defense."

After the first assault, the Nguyễn built two massive fortified lines which stretched a few miles from the sea to the hills.

Johnston reacted by pulling back to the fortified lines at Resaca.

The rebels had to leave their fortified lines and retreat to the town of Izhevsk.

The following fortified lines were not garrisoned after 1964, but maintained until 1986: