Retrograde Mars can mean the very very negative application of martial power. IE see whats happening in Burma right now.
Here’s](http://mars.jpl.nasa.gov/allabout/nightsky/nightsky04-2003animation.html%22%3EHere%27s) a very nice animation that explains the optical illusion of these … Oh, dash these retrograde Martians! 
djm
djm, you’re swearing a lot lately. Anything you need to tell us?
Hain’t swearin’. That thar be cussin’. 
djm