context: Operation Raviv (Hebrew: רביב, spray), also known as the Ten Hour War, was an IDF raid on the Red Sea coast in Egypt during the War of Attrition. Raviv, which took place on September 9, 1969, was the only major ground offensive carried out by the Israel Defense Forces against Egypt throughout the war. The operation witnessed the Israeli forces covering up under the cover of the Egyptian forces and using the captured Arab armored vehicles. [1]
question: When was Raviv surgery?
answers.text: September 9, 1969