Ok, just curious about this. I've looked (admittedly not very hard though) and was trying to find out how high year tenure works as an Officer. I figure I will have approx 12 years in when I get my commission. Given that how will high year tenure work? Will I be able to do a full 30 years if I should want to? Also, what's the time requirement for advancement between the different ranks as an Officer? Thanks in advance.