Complex sentence: It is an integral part of the national identity, strongly influenced by the country's long and turbulent history, which forced Albanians to protect their culture from their overlords by living in rural and remote mountains.
Split into simpler sentences: It is an integral part of the national identity and has been strongly affected by the country's long and continuous history. In consideration to the turbulent history, the Albanians kept maintained vast cultural identity away from their overlords, with many living in rural and remote mountains.