Russia posesses stockpiles of thermonuclear armed artillery shells. The use of depleted uranium rounds or other non-fissile munitions does not count for the purposes of the question, only fissile weapons. Russia currently posesses such weapons but has not used them.
The use of a "demonstration strike" against an unimportant objective would still count as their deployment. So long as the weapons have been fired they will be considered deployed.
1,000
3.00thanks for sharing the information with us. To help you obtain clear, smooth skin, we at ReNew Skin Clinic specialize in offering the best acne scar treatment in Paschim Vihar. Our cutting-edge dermatological treatments are designed to successfully lessen scars and give you back your self-assurance. For long-lasting results and secure, individualized treatment, put your trust in our skilled staff.