جند الأردن
By dint of his descent, Yazid was a natural candidate for the succession to the caliphate. A noble Arab maternal lineage held political weight during this period in the Caliphate's history, and Yazid took pride in his maternal Sufyanid descent, viewing himself superior to his Marwanid brothers. He was chosen by his paternal half-brother Caliph Sulayman () as the second-in-line for the caliphate after their first cousin Umar II, who ruled from 717 to 720. Yazid acceded at the age of 29 following the death of Umar II on 9 February 720. For much of his reign, he resided in Damascus or his estates in Jund al-Urdunn (the military district of Jordan), which was centered in Tiberias and roughly corresponded with the Byzantine province of Palaestina Secunda.