The floods in Pakistan have wiped out thousands of hectares of crops, ruining the livelihoods of millions.br br Pakistani and UN officials estimate that 80 of the food stock has been destroyed in this country.br br The cost of the crops destroyed amount to up to $1bn, according to the World Bank.br br The government is concerned about how it is going to feed its population of more than 170 million over the next few months.br br Al Jazeera's Sohail Rahman report from the Swat Valley in Pakistan.