Yes, I am 99% sure it will retreat if attacked by a 1 movement unit.
Test it out for yourself.
Test it out for yourself.

fe3333au said:Quick Question ... if a horse or other large movement unit is fortified, will it still retreat when attacked?
Suppress? Do you mean will barbarians show up if you pop a hut with a worker? If you're expansionist or have no military units, I don't believe they can. Otherwise it's possible.Mathias said:Something that we need to know: Do workers and slaves suppress barbarians?
I'm guessing he means barb camps. Workers definitely don't stop them appearing. I've had a barb camp appear on the tile next to a stack of workers and had a mad rush to find some fast units that could reach them to defend them.superslug said:Suppress? Do you mean will barbarians show up if you pop a hut with a worker? If you're expansionist or have no military units, I don't believe they can. Otherwise it's possible.