[cheald]

There is a reason that we fight our battles with guns and bombs rather than swords and shields; removing the soldier from danger insofar as is feasible while maintaining combat superiority has been the aim of most all warfare technology developments since the dawn of time.

While you can most certainly argue against the ethics of war, if you're going to permit war as a reality of human existence, then I'd say it's quite unethical to insist on waging said war with technologies that put your soldiers at any further risk than necessary.

It's not like we aim to fight fair wars.