I think that the discussions on import and export are not exactly right. The EU or the U.S.have to have made legal arrangements,or nationalize something,vaccines in this discussion,for instance and declare the materials are to be used in a war effort. The U.S.has done this in our short history for boots,steel,aluminum and other things as part of a military campaign. The public turns in their personal excess and domestic production is entirely dedicated to the military. Biden has directed companies,using government money to tool up,or dedicate their manufacturing towards an American objective using the Defense Production Act.
I think that European and American vaccine makers are all trying to meet obligations that contracted for before,during and after the start of the declared pandemic. It was said before that success or failure,the U.S. government dumped mountains of money on vaccine development in Operation Warp Speed..companies around the world had government assuming lots of financial responsibility and risk to develop vaccines it what seemed like overnight. Pfizer didn't take any Warp money,made it over the finish line first..Merck and a few others took the cash and had poor results or are still working on getting a drug to trials.
Under the last administration I can maybe imagine were drugs set to be exported were suddenly denied and said to be prioritized for domestic use first,but it would look like not many are taking that approach.
US not even at @15% immunization,China and Russia certainly not in Covid over mode,both exporting vaccines. And European vaccine makers,no matter who runs the companies sending out product to other non EU destinations.
I asked Google, who got Operation Warp Speed funding? Omg! The answers. And a semi surprise Germany gave $445 million to Pfizer,before Warp program was initiated. But if you read about it billions of dollars were given out..And it looks like there was a redirection of $@10 billion done in semi secret..