I don’t believe we are out of ammo, but we are running low… I believe having 1 billion rounds is considered low as that is what the US keeps in reserve. Since the better part of this 500+ day war has been fought with ammo rather than air craft bombing, I believe this has escalated the decline in ammo.
My opinion solely is the US when involved in war, either directly or indirectly, is seldom in it to win it.
Of course that is just what it seems to me..
I am not a military expert!
However if your enemy discerns you are hesitant or “not all in” I would think that would play to your enemy’s advantage?
The US has seemingly straddled fences by not sending air support and then running low on 155 ammo, reversed its earlier position and is now sending “cluster bombs”
We ( the US) do not currently have adequate facilities to produce this ammo adequately to restock, so we are buying foreign ammo specifically from Britain.
I believe if you also are not as bloodthirsty and as amoral as your enemies, you are at a strict disadvantage also! War, is ugly, vile and very immoral in most cases. It is extremely difficult not to have civilian casualties, yes children as has been observed by a prior US drone strike!
Both political parties have aided and abetted our manufacturing businesses moving abroad!