There's over 10 million people, probably 20 million people, largely volunteers, who have been working over the last 20 years in what has now been called the largest internationally-coordinated operation in peacetime.
Más de 10 millones de personas, probablemente 20 millones, casi todos voluntarios, llevan trabajando los últimos 20 años en lo que ha sido calificado como la mayor operación coordinada