I served in the early 80s. I sought out bisexual experiences but I had to be selective and very discreet.
There is a Army post near where I live. My experiences with soldiers is limited. With that said I will say soldiers are a real plus for me. Soldiers whether they identify as gay or bisexual present them self's as masculine and tend to mostly want a hot wet blow job and at lease half of them want to give or get an anal fuck. It is near impossible for me to develop a long term FWB relationship with a soldier because they are reassigned/deployed so often. But that does not prevent me from seeking them out for sexual fun and games.
I too served in the 80's but did not seek out bisexual encounters until years after. I must admit that being in an open shower with 70 men and seeing all those huge cocks turned me on forcing me to turn away to hide my erection. Jerked off many nights with those shower images in my mind.
Is 70 nude men in a shower a test to determine if you are 100% heterosexual or bisexual/gay? When in the army I had the same reaction so I showered with as few guys as possible while trying not to get caught staring at their dicks.
I don't know, perhaps it is but I do think back to those days wondering if I had started sucking cock then would I have spent my life as a gay man. I'm glad I didn't because I do enjoy everything a woman's body provides. I need a woman in my life as much as I need a cock from time to time. If I was in a shower with 70 men today I can assure you I would want to suck every damn cock in that shower though.
I served in the late 70s early 80s. I had a T.S. clearance and didn't dare risk it. I did get approached by guys in my Div. that were bi or gay but turned them all down. Man I was tempted and one night I came close. That guy did get busted and walked out the back door with a DHD later on. The old saying "loose lips sink ships" goes for careers as well and it just wasn't worth the risk.
Yep, my career within the CIA would have never become a reality. Retired now so don't much give a shit!