On August 29, 2005, Hurricane Katrina hit the southern United States, and in Louisiana and Mississippi over 100,000 people suffered from this catastrophe. PWJ dispatched two staff on September 6 and, in cooperation with Mercy Corps, an American NGO and partner of PWJ, distributed emergency supplies. In Slidell, Mississippi, where support had been insufficient, pillows and blankets were distributed at refuges. And in response to requests from volunteer centers, chainsaws were distributed in Hancock, Mississippi.

At the same time, in order to utilize this experience for future disaster support in Japan, PWJ conducted surveys focusing on the fact that this was an urban disaster. PWJ collected information regarding emergency support systems, refuge operations, and collaboration between NGOs and the local administration, from the disaster victims, who were experiencing significant discomfort and inconvenience in refuges and in their homes. After confirming that minimum supplies and food had been distributed to victims, the staff returned to Japan after about two weeks. Thereafter, PWJ has provided support, via Mercy Corps, in the form of mental care for children and musical and sports events for young people.