Pakistan continues to be subject to considerable socio-political, economic and environmental volatility, and in 2010 experienced its worst natural disaster in living memory. What started as monsoon-related flash flooding in the country’s north, later developed into a crisis of national and unprecedented proportions. As rivers swelled to more than ten or twenty times their typical size, almost one-fifth of the country’s total landmass was submerged. Infrastructure, power and telecommunications systems were severely damaged or destroyed entirely. Millions of people were left without access to food, clean drinking water or health services, posing an enormous threat to their survival. Amid severe damage to the agricultural sector, one of the country’s economic mainstays, people’s prospects for recovering their livelihoods were severely threatened. The government estimated that some 20 million people across the country were affected by the crisis, of which more than 10 million were found to be in need of immediate assistance. The Food Security Cluster was formed in October 2005 in response to the devastating earthquake of the same month.