Palau is an island nation in the western Pacific, an archipelago of several hundred islands at the western edge of the Caroline group, near the Philippines and Indonesia. Famous for the spectacular beauty of its Rock Islands, its coral reefs, and its marine lakes, including one filled with harmless jellyfish, it is one of the world's premier destinations for diving and a global pioneer of ocean conservation. A small nation with a matrilineal traditional society and a long history under a succession of foreign powers, Palau is the youngest of the Pacific island states, having gained independence only in 1994.
Palau was settled thousands of years ago by seafaring peoples who developed a distinctive society organised around clans and chiefs, with inheritance passing through the female line. The islands were sighted by Europeans in the sixteenth century and passed in turn through Spanish, German, and Japanese control, the Japanese era leaving a deep mark and the Second World War bringing the ferocious Battle of Peleliu. After the war Palau came under American administration as part of a United Nations trust territory, and after a long and complex transition it became the last of the territory's components to gain independence, in free association with the United States, in 1994.

Palau consists of several hundred islands of varied geology, from the larger volcanic island of Babeldaob to limestone and coral islands, scattered across the warm seas of the western Pacific. Its most famous feature is the Rock Islands, a maze of hundreds of rounded, forest-topped limestone islets rising from turquoise lagoons, a World Heritage site of extraordinary beauty. The surrounding reefs teem with marine life, and the islands hold unusual natural wonders, including marine lakes such as the celebrated Jellyfish Lake, home to millions of jellyfish that have lost their sting in their isolated, predator-free home.

The flag of Palau is a simple and striking design: a sky-blue field bearing a single large golden-yellow disc set slightly toward the hoist. The blue represents the ocean and the nation's emergence into self-government, while the golden disc represents the full moon, considered by Palauans the most auspicious time, associated with celebration, harvest, fishing, and the rhythms of traditional life. The off-centre placement of the moon is for visual balance when the flag flies. The quiet, distinctive design reflects both the ocean setting and the cultural traditions of the islands.
Palau is predominantly Christian, the result of missionary activity, with the population divided mainly between Roman Catholics and various Protestant denominations, reflecting the islands' Spanish, German, and American influences. Alongside Christianity, a notable indigenous religious movement called Modekngei, which blends traditional belief with Christian elements, has a significant following unique to Palau. Traditional beliefs, the authority of chiefs, and the matrilineal clan system remain influential in Palauan society, so that custom and the modern faith coexist, shaping the culture and the social order of the islands.
Palauan cuisine reflects the islands' resources and their layered history, drawing on the sea, local crops, and Japanese, American, and other influences. Fish and seafood, abundant in the rich surrounding waters, are central, traditionally including such delicacies as fruit bat soup, alongside staples like taro, cassava, sweet potato, and coconut. Taro in particular holds cultural importance and is cultivated by women in traditional patches. The Japanese era left a lasting mark on the food, with dishes and ingredients adopted into the local diet, and imported foods now also feature, as across the Pacific.
Agriculture in Palau is largely a matter of subsistence and tradition rather than large-scale export, centred on the cultivation of taro, especially in the wetland patches tended by women, along with cassava, sweet potato, bananas, coconut, and other tropical crops grown on the more fertile volcanic island of Babeldaob. There is little commercial farming, and the country imports much of its food. The economy rests overwhelmingly on tourism, drawn by the Rock Islands and the diving, on fishing and the licensing of its waters, and on financial assistance from the United States under the compact of free association.
The settlement of the islands and the development of their distinctive matrilineal society, the successive eras of Spanish, German, Japanese, and American rule, and the bloody Battle of Peleliu in 1944 shaped Palau, which gained independence as the last component of the American trust territory in 1994. In modern times Palau has won international admiration as a pioneer of environmental protection, creating one of the world's largest marine sanctuaries, banning harmful sunscreens to protect its reefs, and requiring visitors to sign a pledge to respect its environment.

Palau has a population of only around 18,000 people, predominantly the indigenous Palauans, of mixed Micronesian, Melanesian, and Austronesian heritage, with minorities of Filipinos and others drawn by work, sharing the Palauan language alongside English. The population is concentrated on a few islands, especially around the former capital and largest town, Koror, while the small purpose-built capital, Ngerulmud, on the larger island of Babeldaob, is one of the least populous national capitals in the world. Society retains its traditional structure of clans, chiefs, and matrilineal inheritance alongside modern democratic government.
