The Wahhabi War, also known as the Ottoman–Saudi War, was fought from early 1811 until 1818 between the Ottoman Empire, its vassal the Eyalet of Egypt, and the Emirate of Diriyah, the First Saudi State, resulting in the destruction of the latter.
The Emirate of Diriyah, also known as the first Saudi state, was established in February 1727. In 1744, the emir of a Najdi town called Diriyah, Muhammad bin Saud, and the religious leader Muhammad ibn Abd al-Wahhab signed a pact to found a socio-religious reform movement to unify the many states of the Arabian Peninsula.
Al Qunfudhah, also known as Kunfuda, is a Saudi city in the Tihamah region on the coast of the Red Sea. Its population is the fourth largest in Makkah Province, the area of the governate is estimated at 5,195 km², which occupies about 3.65% of the area of the region and is ranked ninth among the governorates of the region in terms of area. It is also one of the large sea ports of the Kingdom of Saudi Arabia on the Red Sea. Al Qunfudhah was founded in 1311 A.C-709 Hijri according to the ancient sources.
The capture of Yanbu, or Yanbu Landing, was a bloodless confrontation between the Saudis and Ottomans in 1811.
The Battle of Al-Safra took place in late 1811, when Tusun Pasha's forces engaged with Saudi forces led by Saud bin Abdulaziz. It was a resounding Saudi victory against the Ottoman forces.
The Battle of Medina took place in 1812, Following the Battle of Al-Safra, Tusun's forces began to deal with Saudi forces stationed in Medina.
The Najd Expedition was a series of military conflicts waged by Egypt on behalf of the Ottoman Empire from 1817 to 1818. It was part of the Ottoman–Saudi War that lasted from 1811 to 1818. The campaign of 1817/8 was led by Ibrahim Pasha, with the goal of capturing Diriyah and ending the First Saudi State by the order of the Ottoman sultan Mahmud II, through no real strategy other than brute force.
The siege of Diriyah took place in late 1818 at the end of the Wahhabi War of 1811–1818 during the Nejd Expedition.
The Unification of Saudi Arabia was a military and political campaign in which the various tribes, sheikhdoms, city-states, emirates, and kingdoms of most of the central Arabian Peninsula were conquered by the House of Saud, or Al Saud. Unification started in 1902 and continued until 1932, when the Kingdom of Saudi Arabia was proclaimed under the leadership of Abdulaziz, known in the West as Ibn Saud, creating what is sometimes referred to as the Third Saudi State, to differentiate it from the Emirate of Diriyah, the First Saudi State and the Emirate of Nejd, the Second Saudi State, also House of Saud states.
The Wahhabi sack of Karbala occurred on 21 April 1802, under the rule of Abdulaziz bin Muhammad Al Saud, the second ruler of the Emirate of Diriyah. Approximately 12,000 Wahhabis from Najd attacked the city of Karbala. The raid was conducted in retaliation against attacks on Hajj caravans by Iraqi tribes and coincided with the anniversary of Ghadir Khumm.
Sayyid Muhammad ibn Ali al-Idrisi (1876–1924) was the founder and first ruler of the Idrisid Emirate of Asir.
The campaign in South Arabia during World War I was a minor struggle for control of the port city of Aden, an important way station for ships on their way from Asia to the Suez Canal. The British Empire declared war on the Ottoman Empire on 5 November 1914, and the Ottomans responded with their own declaration on 11 November. From the beginning, the Ottomans had planned an invasion of Britain's Aden Protectorate in cooperation with the local Arab tribes. The Ottomans had gathered in some strength on the Cheikh Saïd, a peninsula which juts out into the Red Sea towards the island of Perim.
Bareq, is one of the governorates of Asir in the north-west of the region, 120 km (75 mi) north of Abha. It occupies a distinct location midway between Tihama and Asir, 412 m (1,352 ft) above sea level. With an estimated population of 75,351, it is well off economically; the city has grown rapidly and has many government services and public utilities available. It is one of Asir's winter resorts because of its natural environment and mild winter weather. Bareq has valleys.
The Capture of Al Hinakiyah was a military engagement between the Saudi army led by Saud bin Abdulaziz and the Ottoman garrison, who were stationed at Al Hinakiyah, they successfully expelled the Ottoman garrison.
The Battle of Turuba took place in 1813 when Ottoman forces besieged Turubah. The garrison was led by Ghaliyya Al Bogammiah who successfully routed the Ottoman army.
In 1814, the Saudis laid siege to the Ottoman-held city of Taif, but the Ottoman governor of Egypt, Muhammad Ali Pasha, successfully forced them to raise the siege.
The Al Bahah Expedition was a military expedition launched by the Ottoman army against the Zahran tribes in Al Bahah. The operation ended in another Ottoman defeat.
The Battle of Byssel was a military engagement between the Ottoman forces and the Saudi forces in Byssel. The Ottomans won a decisive battle, which broke Saudi power.
The Dhurma Massacre is a massacre perpetrated by the Ottomans in the Siege of Dhurma, during the Expedition to Najd (1817-1818).
The battle of Mawiyya was fought in 1817 between the Emirate of Diriyah led by Abdullah Ibn Saud and the Ottoman Empire led by Ibrahim Pasha.
Ottoman Empire 
Emirate of Diriyah