Isolationism is a political philosophy advocating a national foreign policy that opposes involvement in the political affairs, and especially the wars, of other countries. Thus, isolationism fundamentally advocates neutrality and opposes entanglement in military alliances and mutual defense pacts. In its purest form, isolationism opposes all commitments to foreign countries including treaties and trade agreements. This distinguishes isolationism from non-interventionism, which also advocates military neutrality but does not necessarily oppose international commitments and treaties in general.
This contrasts with philosophies such as colonialism, expansionism, and liberal internationalism.
Isolationism has been defined as:
A policy or doctrine of trying to isolate one's country from the affairs of other nations by declining to enter into alliances, foreign economic commitments, international agreements, and generally attempting to make one's economy entirely self-reliant; seeking to devote the entire efforts of one's country to its own advancement, both diplomatically and economically, while remaining in a state of peace by avoiding foreign entanglements and responsibilities.
People's Socialist Republic of Albania#Self-reliance
Before 1999, Bhutan had banned television and the Internet in order to preserve its culture, environment, and identity. Eventually, Jigme Singye Wangchuck lifted the ban on television and the Internet. His son, Jigme Khesar Namgyel Wangchuck, was elected Druk Gyalpo of Bhutan, which helped forge the Bhutanese democracy. Bhutan has subsequently undergone a transition from an absolute monarchy to a constitutional monarchy multi-party democracy. The development of Bhutanese democracy has been marked by the active encouragement and participation of the reigning Bhutanese monarchs since the 1950s, beginning with legal reforms, and culminating in the enactment of Bhutan's Constitution.
Post-Angkor Period
Khmer Rouge
From 1431 to 1863, the Kingdom of Cambodia enforced an isolationist policy.