Weaponry is neither moral or immoral. It is the people who design and use the weapons that are moral or immoral.
As someone once said:" Guns do not commit murder, people commit murder".
With respect to the weapons of war: In the modern world, one cannot afford to be a total pacifist unless one is willing to go to prison. In a future war with the Islamic world, it will be a “no holds barred” conflict ala WW I and WW II. Pacifists will be given a choice of either being hospital corpsmen (women) with combat units or going to a hard-time, maximum security prison for the duration…and this time there will be no going to Canada or Mexico because they will be involved themselves.
The reason for my pessimism? The aim of the Mullahs in Iran are not just protecting their positions against the corrosive influences of Western culture, They are dreaming of re-establishing the Persian Empire and converting all the Infidels, by force if necessary. It is one of the tenets of Islam, like it or not.