Siege of Jebus

The Siege of Jebus occurred when Israelites under King David of Israel besieged the Jebusite city of Jerusalem, then known as Jebus. The Israelites gained access by a surprise assault, making Jebus the capital of a united kingdom of Israel.

Biblical Description
Then David and all Israel went to Jebus and the Jebusites, the inhabitants of the land, were there. The inhabitants of Jebus said to David, "You shall not enter here." Nevertheless David captured the stronghold of Zion. Then David dwelt in the stronghold; therefore it was called the CITY OF DAVID and he built the city all around from the Millo even to the surrounding area; and Joab repaired the rest of the city and David became greater and greater for the LORD of hosts was with him.