 Complete the following phrase:  M48s were also used with mixed results during the Six-Day War of 1967. On the Sinai battlefront, Israeli M48s upgunned with the then-advanced 105 mm L7 rifled tank gun were used with considerable success against Egyptian IS-3s, T-54sT-55s, T-3485s and SU-100s supplied by the Soviet Union during the 1950s and the 1960s such as during the 