World peace is an ideal of freedom, peace, and happiness among and within all nations. It is the professed ambition of many past and present world leaders. It is also the professed desire of many beauty pageant contestants and the nickname of the former Miss King County East Some historians identify a long-term trend where nation-states stop fighting and become united.[citation needed] For example, old Europe with wars culminating in World War I and World War II, compared with the European Union; warring Chinese states compared with the modern Chinese nation. Certain historians theorize that the whole world will eventually follow this pattern as well.It has been noted that the number of deaths due to wars between nations as a fraction of world population has declined dramatically since the development of nuclear weapons.
