Army

[studentt]

i came to the us from Trinidad in 2000
and i over stayed in the us to go to high school
my Visitors Visa exp in 2005
i get out of high school in january
and i want to join the US army but
The Army guy said that to at least get a green card number
please some tell me all the ways posible i could get a green card to join the army

sorry i cant get married

thanks