MILITARY FORTIFICATION 1936 - 1945
Robben Island was declared a military reserve
by the Minister of Defence.
1939-1940 In June, John Craig, the Advisory Engineer for harbours in the
Union, was given the rank of Lieutenant-Colonel and charged with the
fortification of the Cape Coast in preparation for war.
15,000 tons of building materials were transported to
the Island for the construction of gun emplacements with their ancillary
observation posts, power stations, plotting stations and magazines, most of
which were 30 feet underground. In addition, the perimeter of the Island was
fortified with machine-gun posts, search light stations and barbed-wire