Some of them call it (the service of knowledge), and some of them call it (the compulsory service), but the truest name for it is the name given to it by the public: (compulsory). Compulsory, which no matter how much they cover it with national cellophane, will remain one of the heaviest experiences that a person goes through. He will live a long time and die, and the heavy feeling that there is a gun on his shoulder will never disappear.
