Why is the American government/ Empire so keen on war all the time?

[the2real4mafol]

BraveNewWorld said:
America is so ridiculously peaceful when you consider our military budget. Immortal Technique in a song said the United States has a "defense budget of world conquest proportions" and it's true. Almost 37% of the entire world's military expenditures belong to the US. We spent 640 billion in 2013.

Anyway, here's the current reason we're purging the middle east for the rest of the world.

"If you threaten America, you will find no safe haven." - Barrack Obama (Sept. 10, 2014)

I expected to hear an eagle cry and for fireworks to go off outside the window behind him when he said that during his speech Wednesday night.

Afghanistan and Iraq cost in the range of $3 to $4 trillion at a time when taxes went down and a property bubble started to form. No wonder debt is so high now. Couldn't of happened at a worse time. 

War is just a wasteful drain on the economy and Obama is insane so. No one threats the current most powerful country in the world without being provoked. Obama's speech was pure patriotic propaganda