This one is really hard to remember when you are getting your ass kicked.
It reminds me of a battle scene from one of M K Hume’s Arthurian trilogies. Arthur is fighting the Viking invaders (I prefer them as lovers than fighters). They are using a shield wall. Third day of battle hardly any of them left to man the wall when the cavalry arrives to surround the Vikings from the rear.
I sure hope Fate and the goddess have a cavalry somewhere for me. But if this shieldmaiden goes down, it will be fighting.