. >> and i am steve chaid. >> two and half million people affected by pakistan's worst flooding in generations. u.s. president obama confirms american troops will and combat missions in iraq within 30 days. and russia declares a state of emergency as wildfires shroud the capital, moscow, in smoke. ♪ >> fears are growing about the outbreak of waterboe diseases among the hdredof thousands of people affected by monsoon rains and flooding in pakistan. unprecedented rainfall has triggered floods and landslides, sweeping away thousands of homes and devastating farmland in one of pakistan's most impoverished regions, already hard hit by years of violence. the first cases of cholera have been reported as survivors get ready for more seasonal rains in the hours to come. >> if their homes and belongings and not been swept away, they're buried under mud. everything disappeared within a matter of minutes, and all that is left is this mess. >> the flood came here and took away our homes. the government released water from dams and homes were washed away. around 20,000 homes, mosques, and schools -- it has