Fortification

Fort at Ba The' Agroville, Vietnam, as viewed from the canal.

Radio aerial on top of a defensive bunker at Binh Chanh District near Saigon, Vietnam.

Fortified defensive structure at the strategic village of Cu Chi, Vietnam.

Artillery cannon, possibly 105mm Howitzer cannon, installed at Binh Chanh District south of Saigon, Vietnam.

Ships and other water craft in the water alongside a fortified area during the Sicilian Campaign, World War II. The men in the foreground are unidentified.

A photo of ships and other water craft alongside a fortified area during the Sicilian Campaign, World War II. A large city can be seen in the background.

A photo of a ship sailing in the sea alongside a fortified area during the Sicilian Campaign, World War II.

An unidentified person is standing near the top of a stairway at a Crusades-era fortification at Byblos, Lebanon.

Ruins of a fortress in Byblos, Lebanon from the time of the Crusades.

Ruins of a fortress in Byblos, Lebanon from the time of the Crusades.