Does a one way attack affect "sight" in fog of war games?

Does a one way attack affect "sight" in fog of war games?
Specific Example:
When playing on the Europe map with the fog on, can the owner of Romania see who has troops in Moldova? (assuming Moldova is owned by a different player)
Specific Example:
When playing on the Europe map with the fog on, can the owner of Romania see who has troops in Moldova? (assuming Moldova is owned by a different player)