I'm going with what I learned before and I'm gonna say G
Muhammad and his followers spread the teachings of Islam throughout the Arabian peninsula. Soon after the death of the prophet Muhammad, there were military expeditions, called "futuhat," or literally "openings," into what is now Egypt and other parts of North Africa.
While there was much buildup pre-World War I, it is commonly understood that the assassination of Archduke Franz Ferdinand on 28 June 1914 in Sarajevo pushed the world to war as a result of a complex web of treaties and diplomatic obligations that quickly were triggered and resulted in sides being chosen.
He wanted continued control over Eastern Europe for his own benefits rather than for its people trying to influence other countries into becoming communist as opposed to democratic, this became know as the Iron curtain, the official division between USSR-communist and the US- democratic as the USSR tried to expand and gain more control.