Final answer:
The Neo-Assyrian Empire ended the independence of the King of Israel by conquering the kingdom in 722 BCE and deporting its population.
Step-by-step explanation:
The Mesopotamian power that ended the independence of the King of Israel was the Neo-Assyrian Empire. In 722 BCE, the Assyrian Empire, known for its military might and harsh methods of control, conquered Israel and deported thousands of Israelites to other parts of the empire, a common practice for Assyria to prevent rebellion and assimilate conquered peoples. The Assyrians were led by powerful rulers, including kings like Shurnasirpal II, who expanded the empire's territories through relentless warfare. Eventually, Assyrian dominance in the region succumbed to various pressures, including rebellions and military defeats by emerging powers such as the Babylonians and the Medes, leading to the fall of the Assyrian Empire by 609 BCE.