Let’s say that you and your girlfriend/boyfriend/spouse got a disease that is going to kill you. You made no moral mistakes in order to get this disease, you were just very unlucky.
Now, let’s say that there’s a young girl you know who has superstrong kidneys, and with just one of those kidneys, you could “flush out” the disease. I don’t know if this is realistic biologically, but just focus on the principles here.
Let’s say that you have the chance to kill this girl and take one kidney for each of you, and that there is no way you are gonna get caught. (Because you’re really smart, and noone knows about your disease, she doesn’t even have a social security number, etc)
You also have to remove the kidneys while she’s alive or else it won’t work, so not only will you have to kill her, but agonizingly.
Is this rationally selfish to do? I guess we would all answer no, since this would make you feel like a monster. Right?
Okay, so why is it moral to kill innocents in a war, in order to defeat the enemy? “It’s the enemy’s responsibility” doesn’t seem like a fullfilling answer to me. The innocents are still innocent, and have given them no sanction. Why doesn’t this make you feel like a monster? Because if you don’t defend yourself, a lot more people are going to die later?
But isn’t that utilitarianism, which is supposed to be irrelevant in objectivist ethics? Or is it in your self-interest because the sum of the value you put on people in your country is very big? But in that case, aren’t you actually sacrificing others to yourselves, which you’re supposed not to do? Would it be moral to kill 1 innocent person to cure a disease that affected the whole population? If their blood had the antidote and you would need a lot of it. I see no moral difference between that and killing innocents in a war, in order for you and your loved ones and neighbours and business-partners etc to survive.
Your first example boils down to “should I sacrifice another life for my own?” No you should never do that, as a rational egoist you would be trying to simultaneously hold the principle of the right to life and its opposite. This assumes a civil society though.
Ayn Rand talked about emergency situations and how one cannot talk about ethics in those situations. From my understanding war like self defense can be thought of in terms of an emergency situation. Once a nation tasks itself with its own defense it has to end the threat as soon as possible, obviously with as little deaths on its side as reasonably** possible. This requires very brutal tactics, think of World War II, instilling fear in Germany’s and Japan’s populaces. That is where I think you are getting Peikoff’s and Brook’s deliberate targeting of civilians in their analysis of WWII. Today I don’t think you would have to do that, we’re not fighting mighty industrialized nations but pretty weak backwards states and terrorist cells. War might not be considered a total emergency situation though because there can be a lot of planning especially for an advanced country liked the U.S.. Ultimately one is responsible for the government one finds themselves under. The non-combatants of these countries have to reap what they sow. If their government attacks our citizens the blame for their citizens deaths as a result of retaliation rests on the aggressors.
One other point about the comparison between this disease and war. Yes, a disease like cancer is most likely through no fault of their own (obviously except for things like smoking and lung cancer) but war is not a natural phenomenon, it is started by conscious beings aware of what they are doing. The war is through someone’s fault and certainly not the fault of the defenders.
**I do have lingering questions about how does a military strategist make the decision of what types of weapons and strategy to use. There could conceivably be a way to kill everyone in an aggressive country and risk zero lives as well as totally fuck up the war and risk everyone’s lives (for the sake of protecting the enemies). How does one decide how much risk should be placed on our soldiers lives?