Complex sentence: The Siege of Azekah was a battle between Assyria and Judah, it preceded the Siege of Lachish making it the first known clash between the two kingdoms during Sennacherib's Campaign in Judah.
Split into simpler sentences: The Siege of Azekah was a battle between Assyria and Judah. It preceded the Siege of Lachish, making it the first known clash between the two kingdoms during Sennacherib's campaign in Judah.