The Sadat Begin treaty did not "legitimate" Israel which was years previously already recognized by the USSR, USA UK and MOST all other nations in the world. Israel was a UN member State for many years. This historical fact contrasts to a mytholgical entity so-called Palestine. Israel does not need you to legitimze it Isreal is real and continues toexist and even does trade with the Arab gulf states and Saudi Arabia--many of whose elite come to Israel for medical treatment, as do the Arabs in Judeah and Samaria.
Erdan meets senior IDF officers (res.) to discuss candidacy of Gal Hirsch for police chief (Haaretz)