The Arab-Israeli Conflict, which is the ongoing political tensions and military conflicts between Arab nations and Israel, is one of the longest and most complex disputes in the world. Today, we're going to focus on more recent events, and look specifically at the role groundwater plays in preventing a pathway to peace between Israelis and Palestinians. Groundwater makes up the largest portion of available fresh water on Earth, but as we'll see, access isn't always fair and its availability doesn't always line up neatly with political borders.