Japan has mobilised its military to help with a second mass cull of 2 lakh 30,000 chickens amid a spreading outbreak of a highly contagious strain of avian flu. <br/><br/>Officials said, the highly virulent H5 strain was found in chickens at a farm in Joetsu city in Niigata prefecture. The officials said, 2,100 people, including 1,020 members of the military, were being mobilised in the effort to kill the chickens and contain the virus.<br/><br/>Authorities have also banned the transport of poultry and poultry products in areas close to the affected farm, while sterilising main roads leading to them.<br/><br/>Before the current outbreak, Japan's last confirmed case of avian flu at a farm was in January last year.