Most definitely they have. The Moors, Saracens, and Turks(muslims) have invaded Western Europe, Italy, France, and Spain, in the western world. Several of the Crusades were formed to drive them back; Vlad Dragool (you would know him as Dracula) gained much of his notoriety for impaling several thousand Saracens and Turks. They have also invaded India and several other countries, most notably Persia.
Becasue people know it is right and will someday rule the world..
Nobody. Hitler did not try to rule the world.
Because they were bored!!
Nothing in Islam rules this.
Yes, it is a basic rule in Islam.
20% of the world is Islam
Dar al Islam - Domain of Islam, land currently under Islamic rule Dar al Harb - Domain of War, land currently not under Islamic rule
Islam is the second largest religion in the world.
No Islamic leader was forced to convert to Islam. It is a basic and explicit rule in Islam; per Quran; that no compulsion in religion.
Suicide or any other type of purposeful death is FORBIDDEN in Islam and highly condemned. Therefore there is no "rule" that states about preparation before death.
The territory under Muslim rule expanded rapidly
Islam is not the smallest it is the largest religion in the world.