Based on your reading of Foner or outside sources, identify one cause of World War I.  This can be a direct, short-term cause, or a more indirect, longer-term change that caused the war.  Do your best to identify a cause that has not yet been covered on the blog.  In 1-2 paragraphs, describe the importance of the cause and explain how things may have played out differently regarding that cause. Assuming you are the first to describe a particular cause, put your text in a post.  I encourage you to include an image representing the cause.  If you cannot find a new cause, write a 2 paragraph comment in response to another post further discussing the importance of that cause.