Explain how governments working together the people

It represents the ideals and the opinions of all the citizens. So basically, there are three branches of government; the judicial, executive, and the legislative. The legistaltative branch takes into consideration the votes of the people and create laws, the exectutive branch enforeces these lawas, adn the judcial branch interprets the laws. All three branches keep each other in check so one branch doesn't get too much power. For instance, the legistalative branch can veto the executive branch. 

but governents from different countries negotiate through the united nations to reach agreements that are beneficial for the countries. 

Possess private property.