ভূমিকা
Shiavault - a Vault of Shia Islamic Books History of Islam Chapter Four : Establishment of Muslim Military Forces Formation of the Islamic Army During his stay in Mecca and propagation of Islam, the Holy Prophet acted only as a Divinely commissioned leader. His activities were restricted to guiding people and struggling against the idolaters.
However, after he settled in Yathrib, his function included both religious and political leadership, because the social conditions had drastically changed in Medina and the Holy Prophet was taking great steps in founding a new society based on Islamic instructions. For this reason, he could clearly envisage the probable hardships and obstacles. As a farsighted political figure, he was constantly searching for proper political solutions.
His convention of a brotherly treaty between two groups of Muslims; the initiation and completion of a general treaty; and the convening of a nonaggression pact with the Jews—all these were within his precautionary activities. The Qur'anic texts carrying political and social orders that were revealed in Medina were all appropriate guidelines for the Holy Prophet's proceedings. Then, he was ordered to prepare for war and defense.[^83] Consequently, he decided to form a defense force.
The establishment of such a force was significant because the Meccan unbelievers, who could no longer torture Muslims after the Holy Prophet's Hegira, might probably plot a military strike at the very center of Islam (i.e. Medina). For this reason, the Holy Prophet planned initial stages for the formation of an Islamic army so as to encounter any such probabilities. This army was initially very limited in human sources and military equipment.
However, within a short time, it developed in both aspects. At the beginning of this army’s formation, garrisons dispatched for military operations or surveillance did not exceed sixty; and this number did not exceed two hundred at most.[^84] In the second year and the Battle of Badr, the number was a little more than three hundred. However, in the eighth year and during the Meccan siege, the number of the Islam's soldiers was nearly ten thousand well-equipped soldiers.
Thus, the trend of events showed that the Holy Prophet's predictions came true. Beginning with the second year, there were numerous conflicts and confrontations between the believers and the unbelievers.