 
 <prompt> Pipo wey dey come from di kontri of Rome today, dem dey consider dem as wetin nationality? Given di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: One wahala wey dey with the phalanx na say e dey only work well when dem dey fight for big, open spaces, wey come put Romans for disadvantage when dem dey fight for the hilly terrain of central Italian peninsula. For di 4th century BC, Romans comot from using phalanx and begin use the more flexible manipular formation. Some people talk say na Marcus Furius Camillus cause dis change shortly after Gallic invasion of 390 BC; but e fit be say dem copy am from Rome's Samnite enemies for south, maybe as result of Samnite victories during Second Samnite War wey happun from 326 to 304 BC. 