@peter jeffrey cobb,
What that chart on defense spending proves is that the US spends six times more than the other highest spender, China. It also means that our government prefers spending on wars rather than on our own citizens welfare - with our tax dollars.
This is what happens when those individuals become the "most powerful person on this planet." They must swagger their power with more wars and killings to prove how powerful they are! They look for where they can start wars, because most have never served in the military or in wars, and don't understand the price paid in fortune or lost of life and injuries. In most cases, they don't even have family members, especially children or siblings, serving in the military.
They fail to understand the "cost." They make their decisions from a desk.