Rule 9.4 says that
Dropping off CUs in a non-friendly space requires a general to indicate ownership. [...] Since each player is limited to four minor generals, this will limit the number of non-friendly spaces you can leave your units in.
Rule 12.10 says that
Whenever the commanding general is killed in a leader loss check and no other friendly major general is stacked with the Army, an available minor general from off board may be placed instantly to take command of the Army. If none are available, then the Army becomes leaderless.
My question is, if an Army becomes leaderless in a non-friendly space, does it violate rule 9.4? Should this Army be disbanded or can it remain in the non-friendly space?
And, if it can remain leaderless in a non-friendly space, then it is no longer an Army and the stack is governed by rule 8.2?