The Federated States of Micronesia (FSM) is an independent sovereign island nation located in the western Pacific Ocean, consisting of 607 islands spread across the Caroline Islands archipelago. The country is divided into four states: Yap, Chuuk, Pohnpei, and Kosrae. Each state is centered around one or more high islands, and most are surrounded by extensive coral reefs. The total land area is relatively small, but the nation holds a massive Exclusive Economic Zone (EEZ) covering over 2.6 million square kilometers of ocean, which is critical for its maritime-based economy and regional influence.

The constitutional government of the FSM is a federal system, established in 1979 after the dissolution of the Trust Territory of the Pacific Islands, which had been administered by the United States under a United Nations mandate following World War II. The national government is located in Palikir, on the island of Pohnpei. The FSM maintains a unique relationship with the United States through a Compact of Free Association (COFA). Under this agreement, the U.S. provides financial assistance, defense, and access to certain services, while Micronesian citizens are permitted to live and work in the United States without visas, reflecting deep historical and strategic ties.

The islands of the FSM exhibit significant geological variety, ranging from high, mountainous volcanic islands to low-lying coral atolls. Pohnpei is the largest and highest island, with a lush, volcanic landscape that receives some of the highest annual rainfall in the world. In contrast, many of the islands in Chuuk and Yap are atolls - narrow rings of coral reefs surrounding a central lagoon. These diverse landforms dictate settlement patterns and resource availability. While the volcanic islands offer fertile soil for agriculture, the atolls are characterized by thin, sandy soils and a heavy reliance on marine resources and coconut cultivation for survival.