First Itavian War
Military action
Roman Republic attempt to expand north spark war with Etrurian Confederation.
Following its change into Republic, Roma was on a collision course with Etrurian Confederation - mostly because the last king of Roma was of an etrurian descent.
It finally lead to several year long period of struggles between Roma (and surrounding cities it earlier conquered) and Etrurian Confederation, finally ending in Romans decisive victory and annexiation of whole Confederation, changing into dominant power on central Itavian Peninsula.