As a female military officer, I find some of these comments quite insulting. If a woman wants to fight on the front line, she should be evaluated the same way a man is, physically and mentally. If she can pass the physical requirements, such as being able to drag a fallen comrade and withstanding carrying a certain poundage on her back, then she is physically able to fight on the front line. If she is a stable person who is calm under pressure and is resourceful and puts her people above herself, then she is mentally able to fight on the front line.
As for women being in the background of the military, I have to disagree. Much of the fighting nowadays is not on the front line directly. You will find women in the roles of pilot (fighter and otherwise), air battle managers, security forces, and special investigations-- all of which demand being in top physical condition and being mentally sound. However, don't dismiss the "background," as someone called it. Women, along with men, handle pay, logistics, public affairs, medicine, law (criminal and civil), services, and computers. They also are engineers and researchers, designing weapons. They also man the nuclear missile silos. More than 25% of the US Air Force is female, and equal opportunity rights are more protected in the military than in most civilian companies.
As for sexual tension, if you don't want women to be on the front line with men because of sexual tension, you might as well restructure the entire military so that all squadrons are divided by sex. Why stop at the military? Sexual tension exists in the civilian world, so we should have a male-AT&T and a female AT&T. We should have a male-McDonalds and a female-McDonalds... it's a ridiculous argument.
I am in personnel, so I'm not on the front line, but I deploy just like everyone else, and everyone that deploys has a chance of being captured or killed. I've decided that serving my country and trying to make the world a safer place for my son is worth the risk of being raped, tortured, and all the other awful things that evil people do to soldiers.