What was the causes of world war 1?

answer:

the immediate cause of world war i that made the aforementioned items come into play (alliances, imperialism, militarism, and nationalism) was the assassination of archduke franz ferdinand of austria-hungary. when russia began to mobilize to defend its alliance with serbia, germany declared war on russia.

answer; i do believe that the (14th)fourteenth amendment is the correct answer

the answer is title i subtitle b