Most reports I’ve read were fairly vague. One said “plans to invade a country,” with the country unspecified. But, the military has contingency plans for literal everything, so it could just as easily be plans to invade Ireland or Canada or Burkina Faso. They’re not saying, I suspect, because absent the knowledge that we have plans to invade every country on Earth, the general public will mentally insert some scary enemy state into that mention. But if it were plans to invade an enemy state, it would not be reasonable for the security state to allow those documents to be out in the wild where anything could happen.