By signing up for the military, you are essentially volunteering to be expendable in the pursuit of protection for the country. On a moral basis, they are not expendable, and are equal to civilians as you say. When it comes to war though, they have made themselves expendable. I am arguing that large-scale wars shouldn't be carried out at all, because the lives of both soldiers and civilians matter. Obviously, it's hard to make those wars not happen. It's not a switch that can be flipped, nor a matter of legislation in our country. It's a matter of countries joining together to do their best to ensure that more wars like WW1 and WW2 do not happen again.