We have to begin building some sort of defensive works.

Other defensive works were planned, soon to be under way.

Often a combination of these two passive defensive works were used.

Construction on the extensive defensive works began in August 1863.

The next day saw the second line of the capital's defensive works attacked by the Russians.

Massive defensive works were planned for the perimeter but never built.

Hausner watched as the long line of defensive works took shape.

In the days when the walls really defended the town, the defensive works were over 75 metres wide. 5.

They are lashed together in an "X" to form defensive works.

There were no defensive works such as minefields or obstacles made.

The word fortification can also mean the practice of improving an area's defense with defensive works.

Two other unexcavated defensive works are not included in the designated place.

At night, the city's earth-and-stone defensive works are lit up like a movie set.

Defensive works were of importance in the tropical militaries above.

As a civil engineer before the war, he had a natural understanding of the value of defensive works.

After the latter, the defensive works were in ruins.

Remains of the Franks' defensive works from about 520.

This entrance was the weakest point of the defensive works and therefore the best defended.

Unlike the city, much of which was destroyed by the previous year's bombardment, the defensive works were in good condition.

The 15th century was one of great works to adapt to new weapons and developments in defensive works.

It was one of the few purpose-built defensive works of the war era.

By the Germans' own account, their trenches and defensive works were almost completely demolished.

The cotton bales made strong defensive works, and no bullets penetrated.

In the distance a causeway through the swamp was being constructed and what looked like defensive works were under construction near them.

The camp appeared to be laid out in good order, but it was not surrounded by a palisade or any other defensive works.