5, the national oil companies of China, the Philippines,
and Vietnam signed a joint accord to conduct marine seismic
activities in the Spratly Islands; Philippines retains a dormant
claim to Malaysia's Sabah State in northern Borneo based on the
Sultanate of Sulu's granting the Philippines Government power of
attorney to pursue a sovereignty claim on his behalf; maritime
delimitation negotiations continue with Palau

Pitcairn Islands
none

Poland
as a member state that forms part of the EU's external
border, Poland has implemented the strict Schengen border rules to
restrict illegal immigration and trade along its eastern borders
with Belarus and Ukraine

Portugal
Portugal does not recognize Spanish sovereignty over the
territory of Olivenza based on a difference of interpretation of the
1815 Congress of Vienna and the 1801 Treaty of Badajoz

Puerto Rico
increasing numbers of illegal migrants from the
Dominican Republic cross the Mona Passage to Puerto Rico each year
looking for work

Qatar
none

Romania
the ICJ gave Ukraine until December 2006 to reply, and
Romania until June 2007 to issue a rejoinder, in their dispute
submitted in 2004 over Ukrainian-administered Zmiyinyy/Serpilor
(Snake) Island and Black Sea maritime boundary delimitation; Romania
also opposes Ukraine's reopening of a navigation canal from the
Danube border through Ukraine to the Black Sea

Russia
China and Russia have demarcated the once disputed islands at
the Amur and Ussuri confluence and in the Argun River in accordance
with the 2004 Agreement, ending their centuries-long border
disputes; the sovereignty dispute over the islands of Etorofu,
Kunashiri, Shikotan, and the Habomai group, known in Japan as the
"Northern Territories" and in Russia as the "Southern Kurils,"
occupied by the Soviet Union in 1945, now administered by Russia,
and claimed by Japan, remains the primary sticking point to signing
a peace treaty formally ending World War II hostilities; Russia and
Georgia agree on delimiting all but small, strategic segments of the
land boundary and the maritime boundary; OSCE observers monitor
volatile areas such as the Pankisi Gorge in the Akhmeti region and
the Kodori Gorge in Abkhazia; Azerbaijan, Kazakhstan, and Russia
signed equidistance boundaries in the Caspian seabed but the
littoral states have no consensus on dividing the water column;
Ru