occurs when people disengage from social roles that have been central to their self-identity.

Role exit

Explanation:

When a person leaves a role that a person self identifies with in order to take up a new role is known as role exit. Role exits occur when a person is ready to take up a new position either on their own or due to other circumstances which makes it necessary to leave their existing role.

Hence, the statement here is referring to role exit.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place

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explanation:

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