Korea, called Hanguk (Korean: 한국; Hanja: 韓國) in South Korea and Chosŏn (Korean: 조선; Hanja: 朝鮮) in North Korea, is a civilization and geographical area situated on the Korean Peninsula in East Asia, bordering China to the northwest and Russia to the northeast, with Japan situated to the southeast across the Korea Strait. It is often called the "Land of the Morning Calm", a term first used during the Joseon dynasty.
One of the oldest civilizations in the world, Korea's history began with the founding of Gojoseon, dating back to approximately 2,333 B.C. After the Three Kingdoms period, Korea enjoyed long periods of peace during which its culture, science and technology flourished. Despite this relative tranquility, Korea was often a target for invasion and had to defend itself in many wars. As a result, starting in the 17th century, Korea's leaders cut off almost all interaction with the outside world. Because of this, Korea was annexed in 1910 and became divided after the Korean War into two political entities, North Korea and South Korea.
North Korea declares itself to be a self-reliant socialist state that is often described by international outlets as Stalinist and isolationist. It is currently ruled by the Kim dynasty, under which the country has become the world's most militarized society with a total of 9,495,000 active, reserve, and paramilitary personnel. North Korea has often emerged as a subject of controversy due to alleged human rights abuses and its unsanctioned nuclear weapons program, the latter of which makes it a threat to regional security.
South Korea on the other hand is a capitalist liberal democracy, and by 1995, became the world's 11th largest economy. It is also currently the world's fifth largest exporter and seventh largest importer, all feats achieved during South Korea's miraculous economic growth after the Korean War. South Korea also maintains a large military due to strained relations with the North, with 650,000 active troops and 3.2 million reserve troops. Due to both its economic and military prowess, South Korea is a regional power, also enjoying membership in the United Nations, G-20 major economies and the OECD.
Korea is populated by a relatively homogeneous ethnic group, the Koreans, who speak Korean, a distinct language not known to be related to any other language, and which uses a unique script, known as Hangul in South Korea, and as Chosongul in North Korea.