There is no general height requirement for all US Services. There may be minimum height requirements for certain jobs or postions within each service, and these would be too numerous to list. It would be best to contact a recruiter for any specific questions.
Men: Height between 60 inches (5 foot) or under 80 inches (6 foot 8 inches).Women: Height below 58 inches (4 foot 10 inches) or over 80 inches (6 foot 8 inches).As per Army Regulation 40-501 dated 14 December 2007
As of 2011, gay people can freely join the US military and do not have to hide their orientation.
Yes
No, you cannot.
There are twelve inches in a standard US foot. One's own feet were once used to make measurements but since foot size varies greatly this measuring term was standardized to twelve inches.
Not in the US military, no.
Sir Yes, Sir!!
In the US, it is 12 inches.
U.S army
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.
One can join the US military as young as seventeen (17) with parental consent
The Coast Guard is a branch of the US Military, so yes.