Complex sentence: The term Russian diaspora refers to the global community of ethnic Russians, usually more specifically those who maintain some kind of connection, even if ephemeral, to the land of their ancestors and maintain their feeling of Russian national identity within a local community.
Split into simpler sentences: The term Russian diaspora refers to the global community of ethnic Russians, more specifically those who maintain some kind of connection, even if ephemeral to the land of their ancestors. Maintaining their feeling of Russian national identity within a local community.