The tsunami that struck southern Asia on 26 December 2004 was one of the worst natural disasters in recent history. Besides leaving thousands killed and injured, the wave left many more in danger of contaminated water supplies and waterborne diseases. Just a few hours after the tsunami hit, ITT, a global company involved in the water business, began preparing for the delivery of 58 portable water treatment units. Working through USAID and the Industrial Services Bureau (ISB), a local NGO, ITT got volunteers to the scene quickly, and ISB got the local assistance needed, helping to install the filtration systems quickly.