Russia cant use nukes, nor can they directly attack Nato. They threaten this as a means of their propaganda because it works. The current situation is Russia c

Russia cant use nukes, nor can they directly attack Nato. They threaten this as a means of their propaganda because it works. The current situation is Russia cant fully mobilize its population (hence NK). Russia is going all in to the extent it can with what it has, hoping to either break Ukraine will or sue for more favorable peace id guess. Allowing longer term weapons for Ukraine is a gamble by west that it slows Russia again (bleeding them out faster) without impacting russian support (eg raising viability of full russian mobilization). Thats my guesses anyways.