Warfare by Islamic forces before 1918

Crusades

The European crusaders re-conquered much of the territory seized by the Islamic state, dividing it into four kingdoms, the most important being the state of Jerusalem. The Crusades originally had the goal of recapturing Jerusalem and the Holy Land (former Christian territory) from Muslim rule and were originally launched in response to a call from the Eastern Orthodox Byzantine Empire for help against the expansion of the Muslim Seljuk Turks into Anatolia. There was little drive to retake the lands from the crusaders, save the few attacks made by the Egyptian Fatimids. This changed, however, with the coming of Zangi, ruler of what is today northern Iraq. He took Edessa, which triggered the Second Crusade, which was little more than a 47-year stalemate. The stalemate was ended with the victory of Salah al-Din al-Ayyubi (known in the west as Saladin) over the forces of Jerusalem at the Horns of Hattin in 1187. It was during the course of the stalemate that a great deal of literature regarding Jihad was written. While amassing his armies in Syria, Saladin had to create a doctrine which would unite his forces and make them fight until the bitter end, which would be the only way they could re-conquer the lands taken in the First Crusade. It stated that any one who would abandon the Jihad would be committing a sin that could not be washed away by any means. It also put his amirs at the center of power, just under his rule. While this propaganda was successful in uniting his forces for a time, the fervor burned out quickly. Much of Saladin's teachings were rejected after his death.

South Asia

Sir Jadunath Sarkar contends that several Muslim invaders were waging a systematic Jihad against Hindus in India to the effect that "Every device short of massacre in cold blood was resorted to in order to convert heathen subjects."In particular the records kept by al-Utbi, Mahmud al-Ghazni's secretary, in the Tarikh-i-Yamini document several episodes of bloody military campaigns. In the late tenth century, a story spread that before Muhammad destroyed the idols at the Kaaba, that of Manāt was secretly sent to a Hindu temple in India; and the place was renamed as So-Manāt or Somnath. Acting on this, the Shiva idol at the Somnath temple was destroyed in a raid by Mahmud Ghazni in CE 1024; which is considered the first act of Jihad in India. In 1527, Babur ordered a Jihad against Rajputs at the battle of Khanwa. Publicly addressing his men, he declared the forthcoming battle a Jihad. His soldiers were facing a non-Muslim army for the first time ever. This, he said, was their chance to become either a Ghazi (soldier of Islam) or a Shaheed (Martyr of Islam). The Mughal emperor Aurangzeb waged a Jihad against those identified as heterodox within India's Islamic community, such as Shi'a Muslims.
Barbary Pirates

After the Spanish reconquered Granada from the Moors in 1492, many Moors exiled from the Spanish Inquisition fled to North Africa. After attacks against Spanish shipping took place from North Africa, the Spanish retaliated by seizing Oran, Algiers, and Tunis. By 1518, the pirates were serving in the navies of North African Sultans, conducting activities that included attacks on enemy (especially Christian) trade and raiding European coastlines for potential slaves. However, by 1587, their activity became much more decentralized, and more like traditional piracy.

Much of the Barbary activity was funded through the enslavement of European Christians. In the beginning of the 17th Century, there were more than 20,000 captives to be sold into slavery in Algiers alone. Although people from all over Christendom suffered Barbary attacks, the people who were the most likely victims were from Sicily. However, any Christian nation that refused to pay tribute to Islam and either the Sultanate of Morocco, Eyalet of Tripolitania, or the Regency of Algiers could have been subject to attack.

In 1800, the Eyalet of Tripolitania demanded an increase of tribute in order to "prevent" future attacks against the fledgling United States. However, the U.S. refused to pay the tribute, and this led to the First Barbary War. When the U.S. defeated the Tripolitanians in the Battle of Derne in 1805, the two nations signed a treaty that had favorable terms for the United States. However, a resurgence in Barbary attacks in 1815 led to the U.S. Navy being used again in the Second Barbary War, which also resulted in a US victory and the ceasing of all Barbary attacks on American shipping without tribute.
Ottoman Empire

Upon succeeding his father, Suleiman the Magnificent began a series of military conquests in Europe. On August 29, 1526, he defeated Louis II of Hungary (1516–26) at the battle of Mohács. In its wake, Hungarian resistance collapsed and the Ottoman Empire became the preeminent power in South-Eastern Europe. In July 1683 Sultan Mehmet IVproclaimed a Jihad and the Turkish grand vizier, Kara Mustafa Pasha, laid siege to Vienna with an army of 138,000 men.

On November 14, 1914, in Constantinople, capital of the Ottoman Empire, the religious leader Sheikh-ul-Islam declares Jihad on behalf of the Ottoman government, urging Muslims all over the world—including in the Allied countries—to take up arms against Britain, Russia, France, Serbia and Montenegro in World War I. On the other hand, Sheikh Hussein bin Ali, Sharif of Mecca, refused to accommodate Ottoman requests that he endorse this jihad, a requirement that was necessary were a jihad to become popular, due to British pressure and on the grounds that:


'the Holy War was doctrinally incompatible with an aggressive war, and absurd with a Christian ally: Germany'
Central Asia and Afghanistan

Ahmad Shah, founder of the Durrani Empire, declared a jihad against the Marathas, and warriors from various Pashtun tribes, as well as other tribes answered his call. The Third battle of Panipat (January 1761), fought between largely Muslim and largely Hindu armies who numbered as many as 100,000 troops each, was waged along a twelve-kilometre front, and resulted in a victory for Ahmad Shah.

In response to the Hazara uprising of 1892, the Afghan Emir Abdur Rahman Khan declared a "Jihad" against the Shiites. The large army defeated the rebellion at its center, in Oruzgan, by 1892 and the local population was severely massacred. According to S. A. Mousavi, "thousands of Hazara men, women, and children were sold as slaves in the markets of Kabul and Qandahar, while numerous towers of human heads were made from the defeated rebels as a warning to others who might challenge the rule of the Amir". Until the 20th century, some Hazaras were still kept as slaves by the Pashtuns; although Amanullah Khan banned slavery in Afghanistan during his reign, the tradition carried on unofficially for many more years.
Wahabbists

The Saudi Salafi sheiks were convinced that it was their religious mission to wage Jihad against all other forms of Islam. In 1801 or 1802, the Saudi Wahhabists under Abdul Aziz ibn Muhammad ibn Saud attacked and captured the holy Shia cities of Karbala and Najaf in Iraq, massacred the Shiites and destroyed the tombs of the Shiite Imam Husayn and Ali bin Abu Talib. In 1802 they overtook Taif. In 1803 and 1804 the Wahhabis overtook Mecca and Medina