Putin, observing nuclear drills, says nuclear weapons use is last resort

​Russian ‌President Vladimir Putin, ​observing ‌nuclear drills held by Russia and ‌Belarus on Thursday, ‌said that nuclear weapons ⁠usage ​is ⁠a "last resort" measure, and ⁠that such weapons ​must serve as ⁠a guarantor ⁠of Russian ​and Belarusian sovereignty, Belarusian ⁠defence ministry reported.