Sobeit—l have to guess what may have troubled your husband. I am going to refer to my own experience. Although I am a woman and was not subjected to the draft I have been as active as I can be to promote non-violent means of solving conflict. I used to be on board with absolute pacifism. But l am not like that now. I am not capable of standing by when a person is assaulted or endangered. I might not own a gun but l will absolutely fight for my life or the life of another. And l think this is true of most people.
Philosophically your husband may very well have felt the conflict that many of us feel when we believe that it is far better to fight for peace through helping and working for the good of our fellow man long before the flash point, as we are war is the way we have to protect ourselves against our fellow man . even Gandhi felt that at some point war was irresistible—That even a lover of peace might take up arms. The watch tower did not allow for this conscientious point of view.
Perhaps this was a thing that bothered your husband