They stockpiled ammunition and had hundreds of horses available for battle. They have stockpiled and used weapons, often illegally. North Korea has also stockpiled a significant quantity of chemical and biological weapons. A further 70 warheads were stockpiled on the island. Many individuals have stockpiled supplies for a possible flu pandemic. They occur when dust devils pick up large amounts of stockpiled coal. British General Thomas Gage was given information of patriot ammunition stockpiled in Worcester in 1775. There were several places throughout the colonies where the British army had stockpiled supplies. Australia stockpiled 8.7 million doses of Tamiflu and Relenza. The AMX factory secretly produced armoured bodies for these vehicles, which were stockpiled. Each country stockpiled arms and supplies for an army that ran into the millions. At MGH, a special store of emergency supplies had been stockpiled. Cocoons were removed from fourteen of the stockpiled diesel locomotives. The Conservative government had stockpiled supplies and essential services continued with middle class volunteers. The full yield of the stockpiled weapon could be calculated by extrapolation.