Rwanda
Tutsi, Hutu, Hema, Lendu, and other conflicting ethnic
groups, associated political rebels, armed gangs, and various
government forces continue fighting in Great Lakes region,
transcending the boundaries of Burundi, Democratic Republic of the
Congo, Rwanda, and Uganda to gain control over populated areas and
natural resources - government heads pledge to end conflicts, but
localized violence continues despite UN peacekeeping efforts; DROC
and Rwanda established a border verification mechanism in 2005 to
address accusations of Rwandan military supporting Congolese rebels
and the Congo providing rebel Rwandan "Interhamwe" forces the means
and bases to attack Rwandan forces; as of 2004, Rwandan refugees
lived in the Democratic Republic of the Congo, Uganda, and Zambia

Saint Helena
none

Saint Kitts and Nevis
joins other Caribbean states to counter
Venezuela's claim that Aves Island sustains human habitation, a
criterion under UNCLOS, which permits Venezuela to extend its
EEZ/continental shelf over a large portion of the Caribbean Sea

Saint Lucia
joins other Caribbean states to counter Venezuela's
claim that Aves Island sustains human habitation, a criterion under
UNCLOS, which permits Venezuela to extend its EEZ/continental shelf
over a large portion of the Caribbean Sea

Saint Pierre and Miquelon
none

Saint Vincent and the Grenadines joins other Caribbean states to counter Venezuela's claim that Aves Island sustains human habitation, a criterion under UNCLOS, which permits Venezuela to extend its EEZ/continental shelf over a large portion of the Caribbean Sea

Samoa
none

San Marino
none

Sao Tome and Principe
none

Saudi Arabia
despite resistance from nomadic groups, the demarcation
of the Saudi Arabia-Yemen boundary established under the 2000 Jeddah
Treaty is almost complete; Saudi Arabia still maintains the
concrete-filled pipe as a security barrier along sections of the
border with Yemen in 2004 to stem illegal cross-border activities;
Kuwait and Saudi Arabia continue discussions on a maritime boundary
with Iran; the United Arab Emirate 2006 Yearbook published a map and
text rescinding the 1974 boundary with Saudi Arabia, as stipulated
in a treaty filed with the UN in 1993, on the grounds that the
agreement was not formally ratified