Let this be a lesson to all: you need to ensure your industrial base can actually step up and produce what you need for war. Thankfully you don't normally need it, but you are not in control of when someone will decide to attack. You are not in control of if NATO or other alliances fall apart. You have some input on both (please work for peace!), but there are factors outside your control involved.

That nobody is producing enough artillery shells almost 2 years later is criminal. I give Ukraine a small pass here only because evidence is post 2014 they were doing their best to build capacity, and that takes time. The rest of us didn't have the corruption and other problems that Ukraine has done internally, and so we should already have that in place. (or in place the ability to give Ukraine air supremacy so they don't need artillery - there are lots of options)