will they use a nuclear weapon? i honestly am skeptical as to whether they would use a chemical weapon. the most likely they would use would be something they supported in syria and enabled the assad regime. and the affects would not be any worse than what they re doing in terms of casualties but it would put things, as secretary-general stoltenberg said, put things in a different cat degree. so i think it would backfire on the kremlin if they were to use chemical weapons because then it would be very difficult for the u.s. or canada or european allies to hold back anything else. and then with the nuclear weapons, same thing. in fact, the nuclear weapons are useful only for russia as a when they talk about it.