What organization was formed to prevent future wars after ww2

The united nations

Explanation:

was created at the end of World War II as an international peacekeeping organization and a forum for resolving conflicts between nations.

each played a major role in ending the cold war.

martin luther king (1929-1968) was an activist for the african american rights, mr. king has a profile of a kind leader that built a tenacity, respect and full of hope future. he was an activist through civil disobedience and no violence pressure mechanisms. he tried to build a more egalitarian and fair society. his efforts carried a reivindication message of the civilian rights to every west corners. for that reason, he won the nobel prize in 1964.