People do not know if the USA are a force for good?
While many people do not like the USA the simplest way to figure out if the USA is a force for good or not is to simply take the USA out of the equation.
If by some act of God the USA's military and economic might was removed over night, how long does anyone think peace on the planet would continue?
North Korea wants South Korea, but knows it can't beat the USA.
China wants Thailand but knows it can't beat the USA.
The Muslim world wants Israel dead but knows again it can't beat the USA.
Russia wants many of the former soviet states back, again USA. On this note Russia is the only country in the world that could take on the USA and "win" if you call MAD winning.
So while the USA may not be my favorite country, they are the ones they keep the peace.
$1:
but they are fixing a mistake Bush's Father fucked up in the first place.
Explain