This is really a deep dive topic. I'll try to give you some directions to investigate for yourself so you can be informed. Through the late 20th century most of the bullet flying wars in the world were long running conflicts between Muslims and Hindus or Muslims and Buddhists. It was similar in many respects to Ireland, with the war between the IRA and the British. Destructive but not big enough to merit much American press.
Underlying everything is the Muslim conquest to colonize and conquer the world to usher in the 12th Imam. A number of analysts have shown a clear correlation between levels of Muslim population and civil unrest. I don't have the figures before me right now, so please treat this as just a rough guideline. When the Muslim population is 5% or less, they embody the religion of peace. As the population increases, so does the level of violence, and the implementation of Sharia Law over national laws, destruction of national culture and substitution of Islamic culture, etc. The stated purpose of Muslim migration (legal and illegal) is to reproduce at rates that create a Muslim majority, and force submission to Islam (Islam means "submission") until Islam dominates the world, bringing in world peace as all submit, never mind the violence between Islamic factions.
Look to France for a sample timeline, regarding peaceful immigration, increase in % of population and a corresponding increase in violent unrest (Muslims rioting, burning cars and more- beginning with the satirical Allah editorial comic). Most of the violent protests in Europe today are initiated by young Muslim men.
Look at London and England in recent months. Islamic population has increased to the point where they are having political victories and there has been a dramatic increase in street violence as young Muslim men terrorize the streets with clubs and knife attacks. If you criticize Islam in England right now, you have a better chance of going to jail than a Muslim man who clubs 50 women.
Islam has successfully colonized the nations around the Mediterranean, changing the demographics of numerous nations to Islamist. Remember, when Islamist control a nation, gays get thrown off buildings to their deaths, women are beaten to death for not wearing their Hijab correctly, and women are less than third class citizens. If a man thinks his wife or sister has been unfaithful, facts don't matter in her defense, she will face honor killing. So who really is the "bully"?