What led to the division between the sunni and shia muslims?

the sunni and shai was divided because they were trying to help fuel resurgence of conflicts in the middle east and muslim countries

conflict over who should be the caliph

Explanation:

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

explanation: