Facts and figures

Government type Federal assembly-independent presidential republic under a non-partisan democracy

The ‘Know Your Region’ series is designed to support unit and individual professional military education on the Indo-Pacific region. It’s important for all serving members of our military to have a foundational knowledge of the countries and issues in the Indo-Pacific.

On this page:

  • A Short History
  • Government
  • Law
  • Diplomacy
  • International Forums

A Short History

Spain first claimed sovereignty over the Caroline Islands in the 16th century, which included the Federated States of Micronesia (FSM) territories. They engaged in missionary activity and limited administration but remained largely disengaged from effective governance in much of Micronesia. Following Spain’s defeat in the Spanish-American War (1898), Spain sold the Caroline Islands to Germany under the German-Spanish Treaty of 1899. Under German rule, there was increased commercial interest, but development remained limited.

Tokyo saw the strategic and economic value in the remote islands – viewing them as part of its broader “Southern Expansion” doctrine. In 1920, the League of Nations granted Japan a Class C Mandate over Micronesia including the Mariana, Marshall, and Caroline Islands. Japan invested heavily in the islands’ economies and infrastructure, seeking to integrate them both economically and culturally.

In 1947, following Japan’s defeat in WWII, the United Nations (UN) established the Trust Territory of the Pacific Islands (TTPI), placing Micronesia under United States (US) trusteeship. This included Yap, Chuuk (formerly Truk), Pohnpei (Ponape), Kosrae, the Marshall Islands, Palau, and the Northern Mariana Islands. English-language education, healthcare expansion, and infrastructure development accelerated. However, attention to local voices and economic self-sufficiency was limited.

By the late 1960s and early 1970s, there was a growing call for self-determination. The drive for autonomy saw the states in Micronesia negotiating their own futures: Palau pursued independence; the Northern Marianas opted for US commonwealth status; while Chuuk, Yap, Ponape, and Kosrae looked toward federation. In 1975, a Constitutional Convention in Saipan drafted a constitution for the emerging Federated States of Micronesia, with delegates from the four districts that would form FSM. Following ratification by local referenda in 1978, the constitution took effect on May 10, 1979 – a day now celebrated annually as FSM Constitution Day.

Tosiwo Nakayama became FSM’s first president on May 11, 1979. He oversaw the transition to self-government and was instrumental in negotiations toward the Compact of Free Association (COFA) framework with the US. Initial discussions for the Compact began in 1969, the agreement was formalised in 1980, signed in 1982, and was put to referenda in FSM states on 21 June 1983 where 77 percent of the population approved the decision. The US Congress ratified the Compact in 1986, which took effect later the same year. The Compact ended the trusteeship and affirmed FSM sovereignty. The US was granted full Defence authority over the territory in exchange for economic assistance and visa-free entry to the US.

Government

Before European contact, the islands that now form FSM were governed by complex indigenous political systems. Authority was decentralised and determined by clan, lineage, and land ownership. Leadership legitimacy derived from genealogy, spiritual authority, and the ability to distribute resources. Consensus, respect, and obligation was valued over coercive power. Politics was inseparable from social and cultural life, a principle that still influences FSM governance.

Today, FSM is a federal constitutional republic. The constitution establishes a division of powers between the national government and the four state governments: Yap, Chuuk, Pohnpei, and Kosrae. The constitution explicitly recognises customary law, provided it does not conflict with constitutional rights.

Each state is governed by its elected governor and unicameral legislature and retains authority over internal affairs. Constitutional division delineates that national responsibilities are restricted to foreign policy, defence, interstate commerce, and currency. Land ownership remains exclusively for citizens; non-citizens cannot hold land.

The unicameral Congress comprises four at-large senators (four-year terms) and ten district-based senators (two-year terms). Congress elects the President and Vice President from among the senators, who then vacate their seats, triggering special elections.

FSM is unique in its lack of political parties with elections focusing on individual candidates. This makes local connections especially important.

Political tensions have sometimes risen between state governments and the national government, particularly over the allocation of Compact funds, control of resources, and Infrastructure development priorities. Chuuk, the most populous state, has periodically raised concerns about representation and resource distribution, including discussions of greater autonomy.

International Diplomacy

FSM takes a practical and cautious approach to international diplomacy. As a small island country with limited resources, it focuses on protecting its security and supporting its development rather than pursuing ideological positions. FSM’s foreign policy is closely tied to its partnership with the US. At the same time, FSM works actively with international and regional organisations to promote cooperation in addressing issues that affect its national interests.

US

The COFA is the cornerstone of FSM foreign policy. Under COFA, the US provides FSM with economic assistance and access to US federal programs. It also provides visa free entry to the US, creating higher education and employment opportunities. In return the US gets full international Defence authority and military access. While the relationship offers security and economic stability it has also raised concerns about sovereignty and dependence.

China

China-FSM diplomatic relations date to 1989. In April 2024, President Wesley Simina visited Beijing, issuing a joint communiqué highlighting shared commitment to principles such as non-interference and mutual development. China pledged support for FSM's sovereignty, and offered investments in fisheries, infrastructure, and education, including campus gyms and biogas projects. FSM has so far balanced infrastructure support without compromising its security alignment under COFA.

Japan, Australia, New Zealand, and Pacific Neighbours

FSM has longstanding relationships with fellow Pacific Islanders and regional partners. It established diplomatic ties with Japan, Australia, and New Zealand in 1988. These relationships involve development assistance, fisheries cooperation, and educational and cultural exchanges.

International Forums

FSM has been a UN member since 1991, with its permanent mission promoting sustainable development, climate resilience, and ocean sovereignty. FSM often votes in line with US positions, reflecting Compact ties, though this has occasionally drawn regional criticism.

In July 2025, FSM presented its second Voluntary National Review, emphasising Pacific Small Island Developing States (PSIDS) collectively. FSM is a member of the Pacific Islands Forum (PIF), Secretariat of the Pacific Community (SPC), Alliance of Small Island States (AOSIS), Asian Development Bank (ADB), World Bank Group, and the World Health Organisation (WHO).

For more information on FSM diplomacy, see the resources below:

Video

Articles