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 "The war ended on 26 October with Israel successfully repelling Egyptian and Syrian forces but having suffered over 2,500 soldiers killed in a war which collectively took 10–35,000 lives in just 20 days.". Is that enough to answer the question?
Answer: no