Iraq, quicklink, USA

Deserting a professional army?

Apparently, the number of deserters in the US army has been increasing for some years now.. Not surprising, one might be tempted to say, given the rising number of foreign deployments. But then again – maybe I am not getting this – but why would anyone desert in a professional army? Isn’t serving in a professional army like any other employment? Why “desert” when one could simply quit?