thumb|Gulyay-gorod reconstruction. thumb|Pulling shields into position.
thumb|Gulyay-gorod reconstruction. thumb|Pulling shields into position.
Gulyay-gorod, also guliai-gorod (), was a mobile fortification used by the Russian army between the 16th and the 17th centuries.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).