By means of innovative plans, meticulous preparations, and well-executed deception plans, Egypt’s and Syria’s October 6, 1973 attacks took Israel by surprise and caught them off balance and ill-prepared. Facing imminent defeat, Israel saved itself by a desperate defense in those chaotic early hours. Israel was able to stabilize the situation and ultimately went on to defeat Egypt and Syria. Post-war assessments brought about major changes in Israel’s armed forces and in its mobilization and national defense plans. The war was a watershed event for Israel as it was for Egypt. This is the story of the Yom Kippur War.