how can I join the US Army?

try and check their website for more info, best of luck!

just dd, said i need a green card before any other thing, i must be a US resident before i cld join the army. Too bad, it has been by dream to be in the army. tried NDA 2wice after my SSCE, there was no luck (i knew no 1 that knew no 1 that cld help) i tried  DSS 2wice after my graduation , to no anvil, now US army said i need resident permint abi GREEN card before i cld join,
Well i think  i ve got no choice than live my my present job

army or no army, life goes on though ALL MEN ARE EQUAL BUT FEW ARE IN THE ARMY
Tis my dream to be in the army

Why don't you try the British army? Its a lot easier as the only thing you need to be is a member of a commonwealth country (which you already are) and they even increased the minimum age from 28 to 32 recently. I think you have to be over there first though, not too sure