Option 1 would seem to make sense if the opposition knows the contents of the note. The idea of this instruction being a grand secret seems to me to be rather dubious. It's like the doomsday device in Dr. Strangelove --- what good is it as a deterrent if nobody knows about it? The best bet at it being an effective deterrent is to give one's enemy no doubt that retaliation is a certainty. Giving the enemy reason to think they might escape retaliation gives them something to debate --- should we roll the dice? What do we know of this PM and his decisionmaking? They could erroneously conclude that retaliation would not be this PM's style, and give it a shot.Clinton Huxley wrote:It is suspected that Thatcher chose option 1.
The order is meaningless, though. In the end, if a submarine captain is certain of the eradication of the nation, then he is on his own and there are no more laws or obligations from or to that nation. He is a stateless entity, commanding a ship. Whether anyone likes it or not, his discretion is total. He or she must use his or her own best judgment as to what to do. Retaliate? Is there something to be gained by retaliating? Is that gain better than available alternatives? Are there friendly powers still around worth allying with?
When the command is written, it is written in the context of there being a command structure. Once the conditions for opening the envelope are met, however, there is ipso facto no command structure left. The order must be read in light of the reality at the time, and obedience to the order ought only be done if the captain believes it is right. Some might say that he has an honor or a duty to uphold, but that is all gone when the people he owes that allegiance to are gone. He now has a different duty -- the duty to do what is best for those that are still around. That may be "retaliate," but it may not.