CzechoslovakiaCzechoslovakia
Czechoslovakia peacefully split into the Czech Republicand Slovakia.
Brazil gained independence peacefully in 1822.
united nation is not a country..it is a forum with more than 150 countries.
League of Nations was after WW1 and United Nations was after WW2
Slovaks never left their home country. If you are referring to the former republic of Czechoslovakia, Czechs and Slovaks decided to separate in 1993. This decision was political, at that time majority of Czechs and Slovaks were not in favor of the separation. Nevertheless, both countries have proven the ability to succeed both together and separately. Czechoslovakia was a multinational state, with two major nations Slovak and Czech. Unlike nations of other European multinational states such as Belgium or UK, Czechs and Slovaks decided to peacefully separate and maintain high-standard relationships.
NO!!!! Definitely NOT!!!!. Switzerland is a soverign nation in Europe. Noord and Zuid Holand are two of the provinces of the Kingdom of the Netherlands. which is also a separate sovereign nation. The two nations are separated by Germany.
Germany
The capital of Serbia is Belgrade, and Montenegro's capital is Podgorica. They were a unified country called Serbia and Montenegro from 2003 to 2006, but they are now separate nations with their own capitals.
To settle all disputes through negotiation peacefully.
Portugal
The Iroquois league affected it's nations by not fighting and living peacefully. ;) have a nice day!