Explained: More than 200,000 people flee raging wildfires in France and Spain, some escaping by boat

Massive wildfires forced evacuation of about 200,000 people across southwestern France and central Spain

Canadair

A type of firefighting aircraft that scoops up and drops water on wildfires

Prefect

A senior French government official who administers a department or region

Civil Guard

Spain's national military law enforcement force

Black Hawk helicopters

Heavy-lift military helicopters used here for firefighting support

Self-sustaining fire

A wildfire large and intense enough to generate its own weather and spread independently