Why the Dems/Left/Obama cut defense

If you look around the world there has been other leftist regimes that have increased military spending and have had no problem deploying advanced weapons, etc. Why does the modern American left always cut defense but at the same time talk about a DOMESTIC security force?

Could it be that the American left only sees enemies in their own country? Rush is a target but they want to talk to moderate Taliban? Consider this an open thread.