Prof. Mohamed Diaa Zain El-Abedeen, President of Ain Shams University, Prof. Ghada Farouk, Vice President of the University for Community Affairs and Environmental Development, and the family of Ain Shams University, including faculty staff, teaching assistant, administrators, employees, and students, extend their sincere congratulations to His Excellency President Abdel Fattah El-Sisi, President of the Republic, Prime Minister, and Lieutenant General Mohamed Zaki, Commander-in-Chief of the Armed Forces, and Minister of Defense Military Production, Ministers, all political and executive leaders, Egypt's great army and its brave soldiers, and the Egyptian people in all parts of the country, on the occasion of the celebration of the Sinai Liberation Day.