Arab–Khazar wars

The Arab–Khazar wars were a series of long military conflicts in the Caucasus region. These wars took place between the Khazar Khaganate and several successive Arab caliphates. The fighting lasted from approximately 642 CE until 799 CE. This region sits between the Black Sea and the Caspian Sea. It contains tall mountains that act as a natural barrier. Controlling the mountain passes was a major goal for both empires.

The conflict was driven by the need to control strategic mountain routes. Two main paths exist through the Caucasus mountains. One is the Darial Pass in the center. The other is the Pass of Derbent along the Caspian Sea. The city of Derbent was especially important for defense. It served as a gateway between the north and the south.

Ancient empires, like the Sasanian Empire, built stone fortifications to guard these gates. The Khazars were a powerful group of people living in the north. The Arab caliphates were expanding their territory from the south. Both sides wanted to control these vital passages to secure their borders.

Historians divide these conflicts into two primary periods of major warfare. The First Arab–Khazar War occurred between roughly 642 and 652 CE. It began when Arab forces captured the strategic city of Derbent. This first period ended after a large Arab force was defeated near Balanjar.

Following this, large-scale fighting stopped for several decades. However, smaller raids still occurred during the 660s and 680s. The Second Arab–Khazar War was much more intense. It lasted from about 722 to 737 CE and involved full-scale military campaigns.

The Arab armies used specific military tactics to fight the Khazars. They relied heavily on infantry, which are soldiers who fight on foot. These troops were often very disciplined and professional. To stop Khazar cavalry charges, Arab soldiers would dig trenches. They also formed walls using long spears.

The Arabs also used light and heavy cavalry for certain tasks. Some cavalry members would fight on horseback before dismounting to fight on foot. This combination of infantry and cavalry helped them manage different types of battles.

The Khazars used different strategies suited to their nomadic lifestyle. They often launched raids that reached deep into the South Caucasus. These raids were not always intended to conquer new lands permanently. Instead, they were often used to strike at their enemies.

In 730 CE, the Khazars achieved a major victory at the Battle of Ardabil. During this battle, the Arab general al-Jarrah ibn Abdallah was killed. The Khazars were able to strike deep into Arab-controlled territory during this time. This showed how mobile and dangerous their forces could be.

Specific leaders shaped the course of these many years of war. In the second period, generals like al-Jarrah ibn Abdallah and Maslama ibn Abd al-Malik led Arab forces. Maslama recaptured Derbent, which became a major Arab military outpost.

Later, Marwan ibn Muhammad, also known as Marwan II, took command in 732 CE. In 737 CE, Marwan led a massive expedition toward the Khazar capital at Atil. This campaign in the Volga Delta marked the end of the largest wars.

The wars had a massive impact on the politics of the Middle East. The constant fighting weakened the Umayyad dynasty. This instability contributed to the Abbasid Revolution in 750 CE. The revolution led to the creation of the Abbasid Caliphate.

While the wars were violent, they eventually led to a new era of stability. After the large-scale fighting ended, the Caucasus became a major route for trade. This connection linked the Middle East to Eastern Europe. Goods and ideas could move more easily across the mountains once the major conflicts ceased.