According to the WT, these are the actual sequence of events that led to the start of World War I:
1) The Gentile Times ended on October 1/2, 1914
2) Jesus took the throne immediately thereafter.
3) One of Jesus' first tasks as the newly enthroned King was to engage in a heavenly war against Satan and his demons.
4) Having won the war against Satan and his demons, Jesus expelled Satan and his demons from the heavenly realm giving them only terrestial access.
5) Since Satan is a sore loser, he became extremely bitter and decided to wreak havoc upon all the earth.
6) Filled with anger, Satan then provoked the nations of the earth into a 4 year bloody battle known today as World War I
So there you have it... WWI started sometime in October of 1914 (not July 1914 as history books would have you believe). The FDS should send an email out to all profesors of world history so that they may keep up with Jehovah's chariot...