It's pretty common for the player to run into a battle between a neutral/friendly party and a common enemy, and join in.
The AI's behavior in these battles is idiotic.
They count the relative strength, see that they have the advantage, and charge all their men (F1-F3), with no regard for what the player is doing.
This forces the player to either join their moronic charge. or watch them die comically.
Here is a visual example.
I ran into 173 enemy Wimps (Phaea and Honoratus) attacking some friendly Sturgians (Svana).
Svana had 33 men left by the time I joined in.
While my men are getting into their battle lines, she of course immediately charges at the enemy with her 33 peasants.
This is lunacy.
She should either
The AI's behavior in these battles is idiotic.
They count the relative strength, see that they have the advantage, and charge all their men (F1-F3), with no regard for what the player is doing.
This forces the player to either join their moronic charge. or watch them die comically.
Here is a visual example.
I ran into 173 enemy Wimps (Phaea and Honoratus) attacking some friendly Sturgians (Svana).
Svana had 33 men left by the time I joined in.

While my men are getting into their battle lines, she of course immediately charges at the enemy with her 33 peasants.
This is lunacy.
She should either
A) Become a subcommander and let me order her around like an ally, or
B) Cower behind my giant army.
It's ridiculous to keep watching these little neutrals/friendlies kill themselves every time we try to rescue them.