Why were the roads important to the growth of the roman empire

It was important for the Roman army to be able to move soldiers and all their baggage around the country. They built roads as straight as possible, in order to travel as quickly as they could. Winding roads took longer to get to the place you wanted to go and bandits and robbers could be hiding around bends.

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answer; i believe the two groups were irish immigrants and chinese immigrants;

wheres the poem i cant need more info