The Thing Ukraine needs most, according to Ukraine, is shells for their artillery.
No one knows where the US spends almost a trillion dollars a year in the military, but it’s apparently not on artillery shell factories, cause we only have 6 of them.
We simply can’t produce the number of shells Ukraine needs a month, and we’re already sending them shells from our stockpiles. The problem is that the military won’t put all their eggs in one basket. We need those shells in reserve too, so the government is only comfortable sending whatever shells we can reasonably replace.
Giving Ukraine training and access to US stockpiles sounds great, but what if they use up those stockpiles and are still at war? Ukraine’s doctrine is very different from US doctrine. Primarily, They’re using far more artillery shells then the US ever thought it would need, and ukraine would rapidly burn through decades of reserves that were intended for shock and awe style wars with air superiority and highly mechanized infantry.