The Operation Barclay reference article from the English Wikipedia on 24-Apr-2004
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Operation Barclay

During World War II, Operation Barclay was the Allied deception plan in support of the invasion of Sicily.

This operation kept the Axis guessing as to the location of the Allied jump across the Mediterranean by use of bogus troop movements and radio traffic.

See Mincemeat, Trojan Horse, Warehouse, Waterfall, and Withstand.