If US could do that, they would already have done it. However they are so far up their asses that they cannot see that Ukraine has already lost this war. Further weapon aid from the west to Ukraine, no matter what tier is, will only result in meaningless prolongation of this war and further loss of Ukrainian lives. This is not aid, this is throwing people in a meatgrinder to serve west's interests.
The most important thing to understand is that you and everyone else in the west are being subjected to hardcore propaganda and that this is not the narrative that most people on the planet see, despite the effort to alter reality. You will slowly begin to realize when this whole thing is over. Very sad

nuclear holocaust. You should be afraid and everyone else