The Royal Saudi Navy (Arabic: البَحْريَّة الْمَلكيَّة السُّعُودِيَّة, romanized: Al-Quwwat al-Bahriyah al-Arabiyah as-Su’udiyah) or Royal Saudi Naval Forces (Arabic: القُوَّات البَحْريَّة الْمَلكيَّة السُّعُودِيَّة, romanized: Al-Quwwat al-Bahriyah al-Malakiyah as-Su’udiyah), is the maritime arm of the Saudi Arabian Armed Forces and one of the five service branches of the Ministry of Defense of Saudi Arabia. Its primary role is monitoring and defending the Saudi territorial waters against military or economic intrusion, and participating in international naval alliances.