Disobedience in the military: legal and ethical implications

We often think of the army as an institution whose members are required to blindly obey all orders they receive.

However, this perception is inaccurate. Disobedience is a fundamental professional obligation of members of the military and overrides the obligation to follow commands.

But what is the extent of this obligation? Are soldiers obligated to participate in what they consider to be an illegal war, or should they be allowed to enjoy a right to selective conscientious objection?

Should soldiers obey a legal order that, if followed, would facilitate the perpetration of war crimes by a third party?

How should soldiers act if they are ordered to follow a lawful order that could result in immoral consequences?

Should soldiers be allowed to refuse to obey what can be labelled as suicidal orders?