I think some think-tank or super computer when given the problem of an alien invasion came up with unconditional surrender, so for that 0bama would be well suited.
I actually encountered a question like that once from an Air Force Captain of all things. It amounted to "What would we be able to do in the event a Starship like the Enterprise shows up and demands our surrender?"
My answer, "I would recommend immediate surrender followed by quickly and quietly dispersing every physicist, engineer, and technician. We should have stolen enough tech in three or four years to make them miserable."
Essentially, the same answer Haji came up with regarding us.