Gabion Basket Barrier: Hesco Barrier Defence wall sand barrier is a modern barrier system (gabion) manufactured by Karen in Turkey and exported all over the world. It is primarily used for military fortifications and flood control. The barrier is made of a collapsible wire mesh container and heavy duty fabric liner and used as a temporary to semi-permanent levee or blast wall against explosions or small-arms. It has seen considerable use in Iraq and Afghanistan.