According to the Koran and the Hadith, aggressive warfare…

““According to the Koran and the Hadith, aggressive warfare for the purpose of imposing Islam on the world is the ultimate religious obligation of jihad. Second, the history of the expansion of Islam clearly reveals its aggressive, offensive nature. In the seventh century, Islam did not emerge peacefully from the Arabian Peninsula floating harmlessly on the breeze. Islam was spread across the Middle East and North Africa at the edge of the sword. The only choice offered by the Muslim conquerors was conversion or submission to Islam, or death. The same choice was offered when Muslims subjugated Spain and Portugal in 711, and occupied all or part of the Iberian Peninsula until 1492, an occupation of almost eight centuries. Shortly after conquering Spain and Portugal, the Muslims invaded France, but they were repulsed in 732. Muslims also invaded, conquered, and occupied Sicily and large parts of Italy. In addition to invading Spain, France, Sicily, and Italy from North Africa, Muslim armies repeatedly invaded Europe from the east, until they were finally driven out for the last time in 1683. Islam was not waging ‘defensive’ war when it conquered and occupied Spain, Sicily, and Italy or when it besieged Vienna three times.””

— Brigitte Gabriel