From the firefighters of Ravensburg to the communities of Rhondda Cynon Taf, towns and cities across our nations are twinned and friendships have been forged.
O ddiffoddwyr tân Ravensburg i gymunedau Rhondda Cynon Taf, mae trefi a dinasoedd ar draws ein gwledydd wedi’u gefeillio ac mae cyfeillgarwch wedi’i feithrin.