There have always been those who have attempted to conquer the earth. We have seen the likes of the Pharaohs of Egypt, Alexander the Great, Ghangis Khan, Napoleon Bonaparte, the Caesar's of Rome, Adolph Hitler, etc. All these have failed!
Each one of these men who almost did it shared one thing in common; though they controlled huge armies and had great power they did not have rule over their own spirit! In the end, their kingdoms were lost and they were ruined!
And now we read Jesus' words here in this beatitude: "Blessed are the meek, for they shall inherit the earth." This is not the quality most people associate with conquering the world!
Part of the problem is our concept of "meekness." What we usually associate with meekness is not what the Bible teaches as "meekness."