Giv'at Halfon Eina Ona (1976)
Giv'at Halfon Eina Ona also credited as Halfon Hill Doesn't Answer, is a cult Israeli comedy film produced in 1976. It is a good-hearted satire of the Israel Defense Forces which tells the story of a reserves company, watching the Egyptian border in Sinai. Characters such as the conman Sergio Constanza, the Egyptian-born Mr. Hasson and the huge cook Yosifoun became classics.
More at Wikipedia.