MZTV 506 - 08/27/2020: Your Stubborn, Law Loving Relatives May Be Actual Israelites

What happened to the ten tribes of Israel (the Northern Kingdom) that were taken into captivity by the Assyrians but never returned to the land? Is it possible that they became the western, Christian nations? If so, what are the implications of this as far as these people embracing the gospel given by God to Abraham?
Martin's homepage: https://www.martinzender.com