Question: Who led the muslim forces to retake the proposed embassy destination?

Knowledge 1: United Nations General Assembly resolution ES-10/L.22
On 6 December 2017, US President Donald Trump said that he would recognise Jerusalem as Israel's capital and begin the process of moving the embassy from Tel Aviv to Jerusalem. This was a departure from previous Security Council resolutions and prevailing international norms (where no state either recognises Jerusalem as a national capital nor has an embassy there). [SEP] Knowledge 2: Siege of Jerusalem (636–637)
In 634, Abu Bakr died and was succeeded by Umar, who continued his own war of conquest. In May 636, Emperor Heraclius launched a major expedition to regain the lost territory, but his army was defeated decisively at the Battle of Yarmouk in August 636. Thereafter, Abu Ubaidah, the Muslim commander - in - chief of the Rashidun army in Syria, held a council of war in early October 636 to discuss future plans. Opinions of objectives varied between the coastal city of Caesarea and Jerusalem. Abu Ubaidah could see the importance of both these cities, which had resisted all Muslim attempts at capture. Unable to decide on the matter, he wrote to Caliph Umar for instructions. In his reply, the caliph ordered them to capture the latter. Accordingly, Abu Ubaidah marched towards Jerusalem from Jabiya, with Khalid ibn Walid and his mobile guard leading the advance. The Muslims arrived at Jerusalem around early November, and the Byzantine garrison withdrew into the fortified city.
Knowledge 1: United Nations General Assembly resolution ES-10/L.22
On 6 December 2017, US President Donald Trump said that he would recognise Jerusalem as Israel's capital and begin the process of moving the embassy from Tel Aviv to Jerusalem. This was a departure from previous Security Council resolutions and prevailing international norms (where no state either recognises Jerusalem as a national capital nor has an embassy there). [SEP] Knowledge 2: Middle Ages
The Islamic conquests reached their peak in the mid-8th century. The defeat of Muslim forces at the Battle of Poitiers in 732 led to the reconquest of southern France by the Franks, but the main reason for the halt of Islamic growth in Europe was the overthrow of the Umayyad dynasty and its replacement by the Abbasid dynasty. The Abbasids moved their capital to Baghdad and were more concerned with the Middle East than Europe, losing control of sections of the Muslim lands. Umayyad descendants took over the Iberian Peninsula, the Aghlabids controlled North Africa, and the Tulunids became rulers of Egypt. By the middle of the 8th century, new trading patterns were emerging in the Mediterranean; trade between the Franks and the Arabs replaced the old Roman patterns of trade. Franks traded timber, furs, swords and slaves in return for silks and other fabrics, spices, and precious metals from the Arabs.
Knowledge 1: United Nations Security Council Resolution 862
United Nations Security Council resolution 862, adopted unanimously on 31 August 1993, after recalling resolutions 841 (1993), 861 (1993) and an agreement between the President of Haiti and the Commander-in-Chief of the Armed Forces of Haiti, the Council reaffirmed the international community's commitment to a solution in Haiti and discussed the establishment of a new police force in Haiti under a proposed United Nations Mission in Haiti (UNMIH). [SEP] Knowledge 2: Middle Ages
The Islamic conquests reached their peak in the mid-8th century. The defeat of Muslim forces at the Battle of Poitiers in 732 led to the reconquest of southern France by the Franks, but the main reason for the halt of Islamic growth in Europe was the overthrow of the Umayyad dynasty and its replacement by the Abbasid dynasty. The Abbasids moved their capital to Baghdad and were more concerned with the Middle East than Europe, losing control of sections of the Muslim lands. Umayyad descendants took over the Iberian Peninsula, the Aghlabids controlled North Africa, and the Tulunids became rulers of Egypt. By the middle of the 8th century, new trading patterns were emerging in the Mediterranean; trade between the Franks and the Arabs replaced the old Roman patterns of trade. Franks traded timber, furs, swords and slaves in return for silks and other fabrics, spices, and precious metals from the Arabs.

Answer: Abu Ubaidah