you may but only noncombat jobs
No, you must enlist in order to be in the Military. The enlistment process is the process in which you establish your contract and everything within (job, term, bonus and options). Without this you are not in the Military.
Yes you are and yes you can.
Yes you can
Yes. You can join the US military without being a citizen, so long as you've established permanent residence and have declared an intent to obtain citizenship.
Yes, she certainly could. In the US, the age of 18 has always been able to join the military without parental approval. A 17 year old requires parental consent.
yes, go to the military base and then select join military career
There is no reason why they can't join the military
Generally if they can graduate from high school, they can join the military.
Getting into the military without a diploma depends on which branch your son is interested in. For instance, the Navy he could not, but the Army he could join without a diploma.
A minor can only join the military with the permission of their parents and must be at least 17. An 18 year old can join the military on their own.
people join the military when they are at least 18 years and up and when you are a u.s. citizen people join the military when they are at least 18 years and up and when you are a u.s. citizen
Join the Navy dude.