No body gives you power but it is taken from the people by those that need it. It is taken from the poor, the rich, middle class, religion, ethnic groups,weaker countries etc.If you need power especially politicians and world power countries,these people can go to any length to make sure they get that power. Check out what is happening in Russia and Ukraine ,Isreal and the Palestine. Each country is showing power either by technology or man power.
Power is a actually taken, for example, I came from a country whose electoral system is messed up, if election is being conducted in my country, there's no way, you'll be expecting the winners to be the perons the maases expect, the election must be rigged to favour who they political class want or the person that will emerge has to be very powerful to the extent that the political class won't have power to spread there wings to his or her own territory, so I am convinced that politically power ns otherwise power is taken unless we are taking about power from God, I don't what to go into the discussion relating those countries you mentioned for personal reasons.