Headed by British Army General Charles Keightley, it was conducted in November 1956 in close coordination with the Israeli armoured thrust into the Sinai, which was called Operation Kadesh. Egypt's government, led by Colonel Gamal Abdel Nasser, was seeking political control over the canal, an effort resisted by the Europeans. The army was originally to land at Alexandria, but the location was later switched to Port Said since a landing at Alexandria would have been opposed by most of the Egyptian army, necessitating the deployment of an armoured division. Furthermore, a preliminary bombardment of a densely populated area would have involved tens of thousands of civilian casualties. The naval bombardment of Port Said was rendered less effective by the decision to only use 4.5-inch guns instead of large caliber guns, in order to minimise the number of civilian casualties.