Italian to English Social Sciences Tourism & Travel

From a website describing a hotel in the region of Lucca, and the nearby attractions:

Importanti centri limitrofi da visitare, sono...Porcari stessa,...definita la “Pompei rurale” per gli scavi bellici, recentemente rinvenuti a “fossa nera”.

Scavi are excavations and bellici have to do with war or wartime. I cannot make sense of "scavi bellici" here, though. I looked up "fossa nera" (which actually needs to be capitalized as a place name). One of the sites says:

Si tratta di villaggi agricoli più o meno grandi, di avamposti commerciali, di agglomerati che si sviluppano sulle rive del fiume Auser, l'antico Serchio, di necropoli composte da poche o da numerose tombe, di fattorie dalla planimetria complessa munite di palmenti per la produzione del vino, di aie, di fienili, di pozzi per acqua, di ricoveri per attrezzi.

http://www.provincia.lucca.it/unesco/docs/progetti/La_Piana_...

The document is long; I did not read the whole thing. However, from that excerpt, it did not seem to me they were excavating war implements or the like.

Am I missing something obvious here? Maybe another suitable meaning for bellico? Or are there really war items being excavated but I have not found evidence of it?