because Europeans changed the whole government style of ruling
Sadly, there are several countries that have unstable governments. A few of the countries are Turkey, Egypt, and Afghanistan.
Some are democratic governments
The electorate.
There are about 50 countries in Europe. Each of their own governments make their laws in their own ways. Typically they have people elected to their parliaments and then laws are drafted and changed and some are approved by their parliament to become law in those countries.
Some are democratic governments
Countries governments and the media.
Most governments have changed since their early days of independence. Many have given up some amount of sovereignty to the United Nations.
South Africa
Russia
Espionage
the governments of the member countries