Need help deciding on a world history paper topic

[forgop]

Originally Posted by cjhalbrooks

Well this is really easy the war was started because of the assassination of a prince, Before that there had been lines drawn in the sand (so to speak) as in each side had chosen allies. And i want to say that germany was on the princes side. It was all a powder keg

Just a quick search and a short clip on youtube I saw said a month after the assassination, war was declared. However, there was mention about rising tensions because of rising imperialism in Europe with dwindling resources that something was bound to happen whether the assassination happened or not.