Yes, that's the obvious solution, and in fact we've bought Pfizer from Poland and cut various other deals. It's unfortunately not quick to do, although in my opinion the government failed to prioritise it as heavily as it should have.
Interesting to see that vaccine idiocy has made it to other countries. American soft power truly is something.
I live in slovenia, and we're giving vaccines away to other countries (literally), because people don't want to get vaccinated, and the vaccines are nearing the expiry date.
You can choose the vaccine, and can get vaccinated any day, even without signing up.