How do i propose to a female member of united states armed forces?
like you would with any other female....
The same way you would to a non member of united states armed forces.
You propose to her as an individual - her job has no bearing on whether she'll agree to marry you or not.
That they are in the military does not affect how you propose. If you want to marry this person you should know how best to propose to them
"Brenda, I love you, and I want to spend the rest of my life with you. Will you marry me?"
However you think she'd like ... down on one knee or not, ring or not, in a special spot, in private vs. public, etc. Only you can answer this question. I don't see what her occupation has to do with this.
The same way you'd propose to any woman. You know her tastes (fancy, casual, outspoken, whatever) so use her personality as a guide.
Why in the name of all that is sane would her job have any bearing on your proposal?
Hey I hope you dont die but i want to marry you.
Propose to the woman you love.
Perhaps rethink this - how do you wish to propose to the woman you want to spend your life with? All else is secondary.