Islam migrants ("Muhajirun"), Muhammad in Medina established his political and religious authority. The Constitution of Medina was formulated, instituting a number of rights and responsibilities for the Muslim, Jewish, Christian and pagan communities of Medina, bringing them within the fold of one community—the Ummah. The Constitution established: All the tribes signed the agreement to defend Medina from all external threats and to live in harmony amongst themselves. Within a few years, two battles took place against the Meccan forces: first, the Battle of Badr in 624 – a Muslim victory, and then a year later, when the Meccans returned to Medina,
Operation Badr order of battle Operation Badr order of battle This is the order of battle for Operation Badr, an Egyptian military operation that initiated the Yom Kippur War against Israel along the Suez Canal in the Sinai on October 6, 1973. As neither belligerent has released an official order of battle, this list remains incomplete (for example, concerning brigades within divisions of the Third Army) and largely conjectural. An asterisk indicates Egyptian units that participated in the operation. The Sa'iqa (lit. ""lightning"") were Egyptian commando forces. General Headquarters (Center Ten): Commander in Chief - Colonel General Ahmad Ismail Ali Chief of Staff - Lieutenant