ship cannonsWarships provided supporting fire for the land forces. During Neptune, it was given a high importance, using ships from battleships to destroyers and landing craft. For example, the Canadians at Juno beach had fire support many times greater than they had had for the Dieppe Raid in 1942. The old battleships HMS Ramillies and Warspite and the monitor HMS Roberts were used to suppress shore batteries east of the Orne; cruisers targeted shore batteries at Ver-sur-Mer and Moulineaux; eleven destroyers for local fire support. In addition, there were modified landing-craft: eight "Landing Craft Gun", each with two 4.7-inch guns; four "Landing Craft Support" with automatic cannon; eight Landing Craft Tank (Rocket), each with a single salvo of 1,100 5-inch rockets; eight Landing Craft Assault (Hedgerow), each with twenty-four bombs intended to detonate beach mines prematurely. Twenty-four Landing Craft Tank carried Priest self-propelled howitzers which also fired while they were on the run-in to the beach. Similar arrangements existed at other beaches.

Fire support went beyond the suppression of shore defenses overlooking landing beaches and was also used to break up enemy concentrations as the troops moved inland. This was particularly noted in German reports: Field-Marshall Gerd von Rundstedt reported that:

... The enemy had deployed very strong Naval forces off the shores of the bridgehead. These can be used as quickly mobile, constantly available artillery, at points where they are necessary as defence against our attacks or as support for enemy attacks. During the day their fire is skillfully directed by . . . plane observers, and by advanced ground fire spotters. Because of the high rapid-fire capacity of Naval guns they play an important part in the battle within their range. The movement of tanks by day, in open country, within the range of these naval guns is hardly possible.

Just prior to the invasion, General Eisenhower transmitted a now-historic message to all members of the Allied Expeditionary Forceate. It read, in part, "You are about to embark upon the gr crusade, toward which we have striven these many months." In his pocket was an unused statement to be read in case the invasion failed.Ship firing

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