I know scallops, not a good subject to exaggerate on, I apologise.
The comments following the article are interesting actually - what does everyone make of the below? I've edited out sections which I massively disagree with (women being put first when it comes to furthering life expectancy etc) but it's an interesting new angle to the debate, which I think also addresses sexism:
"The idea that women cannot fight on the front line because men will protect them is very very weird.
If we assume that it is 100% true then we can win all wars simply by ensuring that ALL soldiers are female. Seriously we could not lose...the enemy men would be protective of the women and be so traumatised by every victim that each loss we had would result in a psychological loss for them!
The truth is that women are VALUED more by society than men.
What we should absolutely NOT have is a situation where men can be called up but women cannot or where the pay for men and women in very different relative positions of risk is equalised or where men (ONLY) are perceived to be cowards for refusing a call-up to a position of high risk...especially in the context that the women in vastly relatively low risk positions seem to demand "respect" for their sacrifices.
This element of respect and reward for women in low risk, but stigma for men who refuse high risk is the true indicator of inequality. The armed forces is acutely aware that if women are "permitted" on the front line, it will be unable to call up men without women in time of war and since call-ups only occur during high casualty wars it will lead to widespread civil disobedience in time of war.
I conclude therefore that they have chosen this sexist compromise for one reason only...to protect women at the expense of men. If their view was anything else then they would simply choose to have single gender units."