I strongly believe that the drone attack on Saudi Arabia's oil facilities will not lead to a war. I will tell two reasons why it will lead to a war. First of all, once U.S. decided to attack, that is an signal to the other country that they will start a war. Even though the U.S. has changed their mind, they can't go out of the war because they already said they will have a war with Saudi Arabia because of the drone attack. Secondly, even though they sent military troops and air defense missiles to Saudi Arabia, Saudi Arabia might not think that the U.S. is supporting them and attack U.S. while U.S. wasn't prepared for that. For these resons, I still beileve that the drone attack on Saudi Arabia's oil facilities will lead to a war.