"I keep hearing how we try to help other countries"
not sure where you are hearing that from but I just read in a newspaper that the USA has one of the lowest percentage of helping out other countries in the world, with less than 0.01% of their income going to help other countries.
They also spend £200million on military which is more than china, south korea, germany, france, UK, russia and india COMBINED.
Since the money obviously isnt going to help other countries, perhaps unemployed americans should consider joining the military, there doesnt seem to be any shortage of funds there