Not to the strong is the battle

Did you know that the U.S. accounts for ~5 percent of the world's population, and ~21 percent of the world's GDP, but we account for ~57 percent of the world's arm's expenditures?

A metaphor for that:  If you imagine the world is a village of 100 people, then 5 of them are Americans, and those 5 own 20% of the village's wealth, and they manufacture more bullets, tanks, warheads, bombs, fighter jets, bombers, etc. than the other 95 people in the village put together.