In order to join the US Military, you must either be a US citizen, or you must be a legal permanent immigrant, physically living in the United States, with a green card.
The US military cannot and will not assist with the immigration process.
If you are not a US citizen, you must legally and permanently immigrate to the United States first, via the regular immigration procedures and quotas, establish a residence, and then (if you meet the other qualifying criteria), visit a military recruiter's office and apply for enlistment.
Stanley Dale Radtke, Esq.
220 Montgomery Street, Suite 416
San Francisco, CA 94104