One of the best kept secrets in the Sinai Campaign (1956) was the participation of US made Sherman M-50 tanks on which the French mounted a 75mm gun. M-50s were active combatants in the Sinai Peninsula and in the daring battle on the Roeifa Dam under the command of Moshe Brill. After many tracks and engine modifications by the IDF, they were used in the Six Day War (1967) and theYom Kippur War (1973).