They ringed the outposts with barbed wire and placed mines along the avenues of approach which were also covered by automatic weapons.

The military has gone so far as to place mines along the fence.

Although not mentioned in the circular letter, engineer corps were also formed, principally to place underwater mines for port defence.

The colonial powers placed ports, railways and mines to economically strategic places.

They can perform roles including direct combat, infiltration behind enemy lines, placing mines, bomb disposal or engineering operations.

Members of the combat support unit were also responsible for placing mines and booby traps.

Jellico determines their best course of action is to place mines across the nebula using a shuttlecraft.

In addition, American officials have accused Iran of placing mines in gulf waters.

He said Iran had placed mines in the gulf only for defensive aims.

The main objective was to place mines beneath enemy defensive positions.