Jersey
none

Johnston Atoll
none

Jordan
border dispute settled with Syria in 2004

Juan de Nova Island
claimed by Madagascar

Kazakhstan
Kazakhstan and China have resolved their border dispute
and are working to demarcate their borders to control population
migration, illegal activities, and trade; delimitation of boundary
with Russia is almost complete - delimitations with Turkmenistan and
Uzbekistan are complete with demarcations underway - delimitation
with Kyrgyzstan is largely complete; creation of a seabed boundary
with Turkmenistan in the Caspian Sea is under discussion;
equidistant seabed treaties have been signed with Azerbaijan and
Russia in the Caspian Sea, but no resolution has been made on
dividing the water column among any of the littoral states

Kenya
Kenya's administrative boundary still extends into the Sudan,
creating the "Ilemi Triangle"; Kenya has acted as an important
mediator in Sudan's north-south civil war; Kenya and Uganda are
working together to stem cattle rustling and violence by Lord's
Resistance Army along the border

Kingman Reef
none

Kiribati
none

Korea, North
with China, certain islands in Yalu and Tumen rivers
are in uncontested dispute; a section of boundary around Paektu-san
(mountain) is indefinite; China has been attempting to stop mass
illegal migration of North Koreans escaping famine, economic
privation, and oppression into northern China; Military Demarcation
Line within the 4-km wide Demilitarized Zone has separated North
from South Korea since 1953; periodic maritime disputes with South
Korea

Korea, South
Military Demarcation Line within the 4-km wide
Demilitarized Zone has separated North from South Korea since 1953;
periodic maritime disputes with North Korea over the Northern Limit
Line; unresolved dispute with Japan over Liancourt Rocks
(Tok-do/Take-shima) and occasional protests over fishing rights in
grounds also claimed by Japan