Egypt and weapons of mass destruction

According to authors Gordon M. Burck and Charles C. Flowerree, cited by M. Zuhair Diab, Egypt provided Syria with chemical artillery shells in 1973 as a military deterrent against Israel before they both launched the October War.

[3] The first use of gas took place on June 8, 1963, against Kawma, a village of about 100 inhabitants in North Yemen, killing about seven people and damaging the eyes and lungs of twenty-five others.

[8] On May 10, the twin villages of Gahar and Gadafa in Wadi Hirran, where Prince Mohamed bin Mohsin was in command, were gas bombed, killing at least seventy-five.

[11] The gas attacks stopped for three weeks after the Six-Day War of June, but resumed in July, against all parts of royalist Yemen.

[12] Casualty estimates vary, and an assumption, considered conservative, is that the mustard and phosgene-filled aerial bombs caused approximately 1,500 fatalities and 1,500 injuries.

Prior to signing the BWC, Egyptian President Anwar Sadat made the following comment to a question about Israel and should they use biological weapons.