Sorry... I have no idea what you mean by 'inaction.' I told you the action I would take- I would flee before my daughter was an adult.
But you also seem to have some idea in your head that if my daughter were an adult, I would tie her down and put her in the basement if she wanted to go back and fight rather than let her make her own decisions.
But no, I will not allow my underage daughter to fight in a war and I will do anything I can to stop my greatest fear from happening. If you have the ability to overcome your greatest fear, good for you. I do not claim to have anywhere near that level of bravery. And if lacking bravery is evil, I guess I'm evil. But it's an inherent evil I have no control over. Wouldn't that make it a mental illness rather than an ethical violation?