Malta
none
Marshall Islands
claims US territory of Wake Island
Martinique
none
Mauritania
Mauritanian claims to Western Sahara have been dormant in
recent years
Mauritius
Mauritius claims the Chagos Archipelago (UK-administered
British Indian Ocean Territory), and its former inhabitants, who
reside chiefly in Mauritius, were granted UK citizenship but no
right to patriation in the UK; claims French-administered Tromelin
Island
Mayotte
claimed by Comoros
Mexico
prolonged drought, population growth, and outmoded practices
and infrastructure in the border region have strained water-sharing
arrangements with the US; the US has stepped up efforts to stem
nationals from Mexico, Central America, and other parts of the world
from illegally crossing the border with Mexico
Micronesia, Federated States of
none
Midway Islands
none
Moldova
Moldova and Ukraine have established joint customs posts to
monitor transit through Moldova's break-away Transnistria region
which remains under OSCE supervision