Jihad
Jihad is an Arabic word meaning "struggle." Jihad is one of the five pillars of Islam, and many scholars have written about its meaning and application. In a moderate context, jihad can often refer to a personal struggle or crisis of faith, or to describe the historical battles of the Prophet Mohammed. Extremists use jihad to mean a fight against anyone they perceive to be an enemy of Islam — including Christians, Jews, the West and even moderate Muslims.