In the year 628, the Prophet Mohammed decided to conquer his birth city of Mecca, expecting to defeat the Quraysh tribe. Mecca was the commercial and religious center of the Arab Peninsula and the Quraysh tribe were important regional merchants. Mohammed, who had been expelled from Mecca in 622, arrived in the city with 1,000 men to attack and found 10,000 enemies. Realizing his inferiority, Mohammed proposed the Quraysh a Hudna (truce) of nine years, nine months and nine days (10 years) during which he could not attack the Quraysh merchants in exchange for allowing him to express his ideas in Mecca. Within Islam, this is known as the Hudna of Hudaybiah. After two years, Mohammed violated the truce and conquered Mecca. In the traditional Islam all Mohammed’s actions are perfect, therefore, if the great prophet of Islam signed and violated intentionally the truce with non-Muslims, “it is imitable”. Yasser Arafat, for example, after signing the Oslo Agreement, declared publically in a Muslim protest in Johannesburg (1994) that “no one could criticize him for signing with Israel, as he (Arafat) had only done the same thing Mohammed had”. Arafat broke the truce of 2000 with the Intifada of Al-Aqsa. When Anwar El-Sadar signed a peace agreement with Israel he requested the “thumbs up” of the influential University of El-Azhar, which approved the political pact as a Hudna, like the one Mohammed had done. In traditional Islam, peace only exists within Islam (Sulha). Truce or Hudna can be agreed on, but violated if it favors Islam.
So… why Egypt, Jordan or the Palestinian Authority do not violate the Truce? Because Israel is far stronger than the Quraysh were for Mohammed.