Internationalism is a political movement which advocates a greater economic and political cooperation between nations for the benefit of all. Partisans of this movement, such as supporters of the World Federalist Movement, claim that nations should cooperate because their long-term mutual interests are of greater value than their own individual short-term needs.
Internationalism is by nature opposed to ultranationalism, jingoism and national chauvinism as well as to strictly economic globalization movements which deny the value of other nations' culture and differences. Internationalism presupposes the recognition of other nations as equal, in spite of all their differences, in total respect of each other's nationalism.
The various trends of internationalism
The left vs right balance
International socialism was one of the original ideals of the communist movement, but internationalism is not restricted to the far left. The right-wing desire for economic globalization uses similar notions of economic integration, but with different political goals and a different economic system. More and more, the left speaks of a globalization of solidarities.
The sovereign nations vs supranational powers balance
Internationalism, in the strict meaning of the word, is still based on the existence of sovereign nations. Its aims are to:
The ideal of many internationalists is to go further towards democratic globalization by creating a World Government. Some seeds of this possible evolution might be seen in certain international organizations such as the United Nations and the European Union. However, this ideal is opposed by other internationalists who wish for the harmonious coexistence of many linguistically and culturally distinct human communities. A world citizenship, by eliminating all existing political boundaries, could accelerate the linguistic and cultural unification of large geographical areas, at the expense of the smaller communities. To address this concern, some consider that world federalism would be the appropriate solution.
- Pop Internationalism by Paul Krugman (http://www.santafe.edu/~shalizi/reviews/pop-internationalism/)
In linguistics, internationalism is a loanword that, originating in one language, has been borrowed by most (ideally all) other languages. Other examples of such borrowings include "OK", "microscope", and "tokamak".