I want to know the answer to the following question:
When did the Egyptian and Syrian armies launch a surprise attack against Israeli forces?
All the background I'm provided with is that "On 6 October 1973, as Jews were observing Yom Kippur, the Egyptian and Syrian armies launched a surprise attack against Israeli forces in the Sinai Peninsula and Golan Heights, that opened the Yom Kippur War.". Is that enough to answer the question?