An Irishman, Osama Bin Laden and an Englishman get granted a wish each from a genie.
The Irishman wishes for his land to be forever nourished and unspoilt.
Osama wishes for all his followers to be together and to have a huge wall surrounding them so they can be cut off from all western civilisation.
The Englishman looks at the genie and says "so tell me about this wall ?"
The genie says the wall is 5000 feet high, 5000 feet thick and there is no way in or out.
The Englishman grins, "Fill the fucker with water then".