I know the history of Islamic aggression. It includes losing most of what they gained in their aggressive acts, and it will again. They have zero chance. History is chock full of barbarians. None of them last. They do, however, have a history of hurting significant numbers of people, before their inevitable demise.
What inevitable demise? Islam started out with Muhammad and a few dozen people in a tiny fragment of what is now Saudi Arabia. It conquered Christian lands in North Africa, Arabia (all of which was pagan, Christian or Jewish) and Europe (all of Turkey, Albania, Kosovo was once Christian), Hindu lands in Pakistan and Bangladesh, Buddhist lands in Central Asia (Afghanistan, Tajikistan, Uzbekistan, Kirghizstan and Kazakhstan) and the Zoroastrian land of Persia. They are Muslim to this day. The population of Turkey has more Greek than Central Asian blood - most are native to the Anatolian peninsula from before the time of Alexander. And they are as Muslim today as they were Greek Orthodox before Islam overran their lands.