A tsunami was triggered by a powerful earthquake in Sulawesi, Indonesia, at the end of September, leaving a trail of destruction.
Over 2,000 people were killed and thousands more injured. Those who survived, have seen their lives ripped apart. Six-metre-high waves flattened whole coastal towns, wiping out thousands of homes and schools.
UPDATE: For the latest on the deadly tsunami triggered by a volcanic eruption on December 22, click here
Hundreds of thousands of people were left homeless and many are sleeping in makeshift shelters, in desperate need of food, water and medical care.
Damage to water systems and sanitation facilities has increased the risk of an outbreak of waterborne diseases, which in the crowded conditions of the evacuation settlements, could spread quickly.
Unless we act fast, many more lives could be lost to illness and disease.
Children have suffered an unimaginably traumatic event and now, their futures are being threatened in the aftermath of this tragedy.