The saudi royal navy is one of the components of the Saudi arabian army. It is made up of approximately 13 500 men, of which 6000 soldiers of the marine corps. The main staff of the navy located in Riyadh and main naval base are Jeddah, Jizan in the Red sea and Jubail in the Persian gulf. Among the main tasks of the navy include coastal defence, protection of sea lanes (especially oil tankers) and patrol..