DFang:

You guys are only confident that the US will win because:

a)You know more about the US and almost nothing about the UNSC

and

b)You don't want to admit that your glorious country might actually lose something and is in a trillion $$ debt right now. 

Tsk, tsk, tsk. Would you like to argue that a UNSC marine would win in a 1 on 1 fight with a US soldier? I have no doubt that the UNSC would win in a full-scale war, because of the 800 BILLION people versus the 300 million in the US. The UNSC could drown the US to death with their own blood and still have billions of people still alive.