Im confused by the ghost DR country to country thing...
If I am getting it right - if country A hits B 5 times... next day if A hits B again , then B will still be in 5 DR as far as ghost acres goes as the ghost DR doesnt go away.
So result = after 1-2 days of land trading no more ghost acres for these 2 countries if hitting each other.
But what if a country C then hits B? Does that undo the ghost DR for A?