Kuwait–Saudi Arabia border
The Kuwait–Saudi Arabia border is 221 km (137 mi) in length and runs from the tripoint with Iraq in the west to the Persian Gulf coast in the east. == Description == The border starts in the west at the tripoint with Iraq on the Wadi al-Batin; a straight line of 90 km (55 mi), angled slightly to the south-east, then proceeds eastwards.
Source: Wikipedia — Kuwait–Saudi Arabia border (CC BY-SA 4.0)