Hesco Bastion:
It is a collapsible wire mesh container with a heavy duty plastic liner. Open in up and use a front end loader to fill it with sand (dirt or gravel) and you have a protective barrier to protect personnel and equipment from enemy fire (or bombs). Originally designed for use on beaches and marshes for erosion and flood control, the "HESCO Bastion" as it is officially known, quickly became a popular security device even before September 11, 2001. The device is named after the company that developed it over a decade ago, a British firm called HESCO.