[Always *]

Olive, I think that your question is probably better suited to another post of your own, not to be critical, I just think it's better we focus on the OP's question here

Any how, I don't think it is a big deal, loads of armies do nasty things. The Americans army isn't exactly squeaky clean of having some nasty soldiers too, call it collateral damage or what ever, it's shitty, but it's not like the Israeli army is singularly special in having a few black spots, so why does it matter?

So if I was your girlfriend I would not care in the slightest. In fact, if anything, I'd be pissed off that you thought that was something worth hiding (or at the very least confused about why you'd expect me to care).
For me, if I were your girlfriend, I'd be insulted that you thought I was so shallow and incapable of judging a character correctly that you'd truly believe my opinion would change just because you served in the Israeli army, especially cause you are Israeli, like, hello, service is mandatory, I'd probably be wondering about that any how and just unwilling to ask.

People see scary things during war, sometimes it was committed by the locals (ex. if you are intervening in a civil war or if you are fighting against another country in that country) and sometimes it is by your own people. Sometimes you had to kill people too. If you'd seen active combat I'd just want to know you were ok, especially if you, yourself, had to do something horrible. Like I have heard of women holding a baby and a grenade, and someone had to shoot the women to survive and the baby dies to, I mean, I have no idea if that's a real case, but it's awful.... I've read so man y things about civil wars and stuff, I know what happens during wars, and no army is always spotless... Israel isn't special like that.

I know you are extremely worried about what women think about you being Israeli, and to be honest, I don't think I will ever understand why, I just see it in post, after post, after post. Maybe you've had some bad experiences with people being irrational in someway and judging you, I don't know, but I do hope that with enough experience to show you otherwise you will be able to recover and heal from what ever things happened to you to make you so insecure.