The United Nations.
Pangea.
All together they are galled the government =p
Groups of people or countries that work together are called Alliance
A congress where COUNTRIES come together to discuss things is called the United Nations which represents ALL countries on Earth.
United Kingdom
There are all together 195 counties in the world
The Commonwealth countries are called that because they are all members of the Commonwealth of Nations.
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Countries stuck together can be referred to as "landlocked countries." This term describes countries that are surrounded by land on all sides and do not have any coastline or direct access to the sea.
Europe consists of about 50 different countries, so they are not joined together. There is an organisation called the European Union, which has 27 members now, but they are all individual and independent countries. In 1957 it was formed by 6 countries: France, Germany, Italy, Belgium, Netherlands and Luxembourg and was known as the European Economic Community, or EEC.
The European Union has not done that. First of all, the European Union does not have all countries of Europe as members. Secondly, while it has promoted some common things and countries in it have worked together, they still all have their own cultures. It is by more practical things of common interest that they have helped bring countries closer together, such as trade.
Italy and Japan. Together, the three countries were called the Axis.