HONOLULU, Hawaii - June 30, 2008 - The United States is an illegal occupying force that should hand the 132 islands of Hawaii back to the monarchy overthrown more than a century ago, according to members of a Native Hawaiian sovereignty movement.

For almost two months, the self-proclaimed Hawaiian Kingdom Government has peacefully occupied the grounds of the Iolani Palace, residence of the islands' last two monarchs, operating a shadow government from a tent erected in its stately grounds.

Her Majesty Mahealani Kahau, a descendant of Hawaii's last king who was elected "head of state" by the group, and her ministers gather each day to debate how to achieve their goal of restoring Native Hawaiian rule.

"We are here, we are real, we are in business," declares the group's website, which outlines its aim to "remove all laws, policies, rules and regulations" of the "occupying power" and "return Hawaii's independent status".

The group, which claims 1,000 followers, is demanding the dissolution of the State of Hawaii and the return of land and bank assets totaling billions of dollars.

Hawaii has about 200,000 Native Hawaiians, or kânaka maoli, out of a population of 1.3 million. The Hawaiian Kingdom Government is just one of a number of sovereignty groups, many with similar names, waging independence campaigns.

All aim to "right the wrong" inflicted on Native Hawaiians in 1893 when a small, mostly American group of sugar plantation owners and other businessmen overthrew the Hawaiian monarchy with the support of U.S. troops sent ashore from a Navy warship.

The then monarch, Queen Liliuokalani, gave up her throne "to this superior force of the United States of America" and was imprisoned in the Iolani Palace in Honolulu, built by her brother King Kalakaua. In 1898, Hawaii was annexed by the United States and in 1959 became the 50th U.S. state.