The most important and first battle of Islam was the Battle of Badar or Ghazwa e Badar. The Meccans were strong, and pound of their wealth and their position. To fight them, strategy was required. The Prophet PBUH decided to strike at the root of these two things. Their wealth depended on their trade with the land of Syria, that is, the Mediterranean littoral, so the trade route to Syria must be cut. The Meccans considered themselves the best of the Arabs in everything, evening valour, so they must be proved wrong. The Prophet send a small patrol of Muslims with the order that the next caravan to Mecca which was, of course, escorted by fighters, be attacked. As it happened, the caravan was led by the chief man of Mecca, the arch-enemy of Islam, Abu Sufyan himself. Abu Sufyan was clever man. He had a strong guard with him, but realizing the danger, he sent a swift messenger to Mecca for aid. Meanwhile the Muslims came up under the leadership of the Great Prophet Muhammad PBUH. They were only about 300 strong, and the Meccans numbered 1000.
These are small numbers, but with these forces one of the decisive battles of the world was fought at Badr in A.D.623, the second year of the Hijrah, the Muslims were inspired by faith, they never doubted for an instant that they would win. They swept the Meccans off the field. It was a great victory. Many prisoners were taken and much booty, but he prophet PBUH showed great diplomacy and foresight; rejecting vengeful advice, he held the Meccans to ransom and treated them well. Battle of Badar or Ghazwa e Badar is Great Islamic Battle established the Muslim rule in Medina and also considered as foundation of Great Muslim Empire.