‘National sovereignty is the idea that independent nations, which have declared their independence, have an organized government and are self-contained, have a right to exist without other nations interfering. It is essentially the unspoken rule of a nation’s right to exist.’
‘Sovereign nations not only have the right to form governments, they have the right to defend themselves against those nations that pose a threat to their sovereignty. National sovereignty is a driving force behind the American ideal of independence. The colonists became very disillusioned over being taxed by England without being granted any sort of representation within the English government. So they decided to form an independent nation that would allow them to govern themselves. With the Declaration of Independence, the United States took the first steps toward becoming a sovereign nation.’
‘With a growing emphasis on a more globally focused worldview and economy, some nations have expressed concern over infringements on their sovereign rights. Some leaders feel that increasing the powers of international organizations, such as the United Nations, and alliances, such as the European Union, is detracting from their ability to remain sovereign by imposing sanctions on individual economies and militaries and forcing them to make decisions for the greater global good rather than for the good of their own nations.’
‘A sovereign state has complete control of the property and the people in the territory. Under this concept, one sovereign state is not allowed to interfere with the internal affairs of another sovereign state. Each state has the right to function independently and make decisions as an individual state. However, some sovereign states have agreed on treaties determining minimum standards for human rights.’
‘Being a sovereign state means that no outside entity can rightfully demand any internal action of the state government, says Globalization 101. For example, if Brazil wished to create an amusement park using a rainforest’s material and land then no other country would be able to outright tell them to stop because of Brazil’s sovereignty rights.’
‘There are 195 sovereign states in the world as of July 9, 2011, reports One World Nations Online, when South Sudan became an independent state. Before that, the last changes occurred with the end of the State Union of Serbia and Montenegro in 2006 and the two nations emerged as independent states.
All sovereign nations of the world are also members of the United Nations … … Included among the non-member states of the UN are the Holy See (Vatican City State), Palestinian Territories (Gaza Strip and West Bank), South Sudan, Taiwan and Tibet.’
(The above are extracts from http://www.reference.com)