Pitcairn Islands
defense is the responsibility of the UK

Puerto Rico
defense is the responsibility of the US

Reunion
defense is the responsibility of France

Saint Helena
defense is the responsibility of the UK

Saint Pierre and Miquelon
defense is the responsibility of France

Samoa
Samoa has no formal defense structure or regular armed forces;
informal defense ties exist with NZ, which is required to consider
any Samoan request for assistance under the 1962 Treaty of Friendship

South Africa
with the end of apartheid and the establishment of
majority rule, former military, black homelands forces, and
ex-opposition forces were integrated into the South African National
Defense Force (SANDF); as of 2003 the integration process was
considered complete

South Georgia and the South Sandwich Islands
defense is the
responsibility of the UK

Spratly Islands
Spratly Islands consist of more than 100 small
islands or reefs, of which about 45 are claimed and occupied by
China, Malaysia, the Philippines, Taiwan, and Vietnam

Svalbard
demilitarized by treaty (9 February 1920)