Countries (and by extension, corporations, organizations, etc.) must either create their own LLMs or rely on those created by other countries.
If you rely on those created elsewhere, how can be sure that the LLM you are using is based on the correct data and configured the way you want it to?
It may seem like something out of a spy novel, but why couldn't LLMs be used by bad actors to spread misinformation, propaganda, or whatever agenda the LLM creator wants?