Brunei, one of the smallest, yet richest states in the world, is located on the island of Borneo, in the Indonesian archipelago.  Fewer than 500,000 people  live within its 22,00 square miles.  A new constitution in 1959 declared Brunei a self-governing state, while entrusting conduct of its foreign affairs to the United Kingdom.  Until 1994, when it asserted full independence.  Learn more about this modern-day sultanate.