Often after a disaster, people do not have access to clean water or food. Relief groups work together to make sure that everyone has enough food and water.

Other relief workers oversee the work by helping the different teams work together. They send out updates on the disaster and the response to keep others informed.

They look for missing people. They enter damaged buildings to find survivors. They look for people who are trapped and help them scape. They often work closely with trained dogs.

Disasters often damage buildings or other structures, and they cannot be used again until they are safe. Construction workers clear the rubble and knock down walls in danger of collapsing.

Doctors and nurses set up hospital tents, where they dispense medicine for diseases and infections. They treat the injured and provide blood for those who need it.

They help people who need immediate medical care in an emergency. They work quickly to bandage wounds and set broken bones.

When a fire breaks out, they arrive. They work to contain the blaze, making sure that it doesn't spread. Then they put out the fire.

They keep order and make sure people stay safe. They help protect people from armed criminals or terrorists. They also help people evacuate dangerous places safely.