Estonia, North Korea, South Korea, Latvia, Lithuania, the Marshall Islands and Micronesia join the United Nations.

The Federated States of Micronesia ( (listen); abbreviated FSM), or simply Micronesia, is an island country in Oceania. It consists of four states from west to east, Yap, Chuuk, Pohnpei and Kosrae that are spread across the western Pacific. Together, the states comprise around 607 islands (a combined land area of approximately 702 km2 or 271 sq mi) that cover a longitudinal distance of almost 2,700 km (1,678 mi) just north of the equator. They lie northeast of Indonesia and Papua New Guinea, south of Guam and the Marianas, west of Nauru and the Marshall Islands, east of Palau and the Philippines, about 2,900 km (1,802 mi) north of eastern Australia, 3,400 km (2,133 mi) southeast of Japan, and some 4,000 km (2,485 mi) southwest of the main islands of the Hawaiian Islands.

While the FSM's total land area is quite small, the country's waters occupy more than 2,600,000 km2 (1,003,866 sq mi) of the Pacific Ocean, giving the country the 14th-largest exclusive economic zone in the world. The sovereign island nation's capital is Palikir, located on Pohnpei Island, while the largest city is Weno, located in the Chuuk Atoll.

Each of its four states is centered on one or more main high islands, and all but Kosrae include numerous outlying atolls. The Federated States of Micronesia is spread across part of the Caroline Islands in the wider region of Micronesia, which consists of thousands of small islands divided among several countries. The term Micronesia may refer to the Federated States or to the region as a whole.

The FSM was formerly a part of the Trust Territory of the Pacific Islands (TTPI), a United Nations Trust Territory under U.S. administration, but it formed its own constitutional government on May 10, 1979, becoming a sovereign state after independence was attained on November 3, 1986, under a Compact of Free Association with the United States. Other neighboring island entities, and also former members of the TTPI, formulated their own constitutional governments and became the Republic of the Marshall Islands (RMI) and the Republic of Palau (ROP). The FSM has a seat in the United Nations and has been a member of the Pacific Community since 1983.

Estonia (Estonian: Eesti [ˈeːsʲti] (listen)), officially the Republic of Estonia (Estonian: Eesti Vabariik), is a country in northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Lake Peipus and Russia. The territory of Estonia consists of the mainland, the larger islands of Saaremaa and Hiiumaa, and over 2,200 other islands and islets on the eastern coast of the Baltic Sea, covering a total area of 47 549 km2. The size of the territory without Lake Peipsi is 43,432.31 km2. The capital city Tallinn and Tartu are the two largest urban areas of the country. The Estonian language is the autochthonous and the official language of Estonia; it is the first language of the majority of its people, as well as the world's second most spoken Finnic language.

The land of what is now modern Estonia has been inhabited by humans since at least 9,000 BC. The medieval indigenous population of Estonia was one of the last "pagan" civilisations in Europe to adopt Christianity following the Papal-sanctioned Livonian Crusade in the 13th century. After centuries of successive rule by the Teutonic Order, Denmark, Sweden, and the Russian Empire, a distinct Estonian national identity began to emerge in the mid-19th century. This culminated in the 24 February 1918 Estonian Declaration of Independence from the then warring Russian and German Empires, and, after the end of World War I, in the 1918–1920 War of Independence where Estonians were able to repel the Bolshevik Russian invasion and successfully defended their newborn freedom. Democratic throughout most of the interwar period, Estonia declared neutrality at the outbreak of World War II, however, the country was repeatedly contested, invaded and occupied, first by Stalinist Soviet Union in 1940, then by Nazi Germany in 1941, and ultimately reoccupied in 1944 by, and annexed into, the USSR as an administrative subunit (Estonian SSR). After the loss of its de facto independence to the Soviet Union, Estonia's de jure state continuity was preserved by diplomatic representatives and the government-in-exile. Following the bloodless Estonian "Singing Revolution" of 1988–1990, the nation's de facto independence was restored on 20 August 1991.

Estonia is a developed country, with a high-income advanced economy; ranking very high in the Human Development Index. The sovereign state of Estonia is a democratic unitary parliamentary republic, it is administratively subdivided into 15 maakond (counties). It has a population of 1.3 million, and is one of the least populous members of the European Union, the Eurozone, the OECD, the Schengen Area, and NATO. Estonia has consistently ranked highly in international rankings for quality of life, education, digitalization of public services and the prevalence of technology companies.