Interesting vid regarding US weapons stocks, positives and negatives; many good comments following including some from other NATO countries. (US commenters are often oblivious to other NATO components & capabilities.)
https://www.youtube.com/watch?v=w6CusO9BntE&t=923s
“Why the US Military isn’t Out of Ammo”
Our actual stockpile dwarfs that 4 million round estimate.