Putin overtly threatens Europe with a nuclear bomb. Until now, NATO thought that Moscow may very well be simply deterred. Secret paperwork now present how low the Kremlin's inhibition threshold is. In one situation particularly, the West would stumble – or should struggle a significant conflict.
https://www.welt.de/politik/ausland/plus250355012/Putins-Atomdrohung-Das-Szenario-in-dem-Russland-die-Nato-in-die-Enge-treiben-wuerde.html