Break Siege and arriving armies

[anonymity]

But if you gave the troops the sneak order, they would end up hidden and therefore useless in the fight. It'd work with more than 1 turn of course.

My understanding of non-magic movement is ALL movement occurs, including break siege, then battles are fought. Then storm castle occurs.

The only cases in which movement will fail are a magical attack in the earlier phase, or if the move is directly opposed in which case the possible failure is random but biased towards the larger army failing. It is possible for forces to pass without engaging also, again dependent on size and randomness.

So to answer your question Maerlande, you will not catch the army moving away with the army inside the fort.

e: Directly opposed meaning the army in A moves to B and the army in B moves to A.