In response to the outbreak of large-scale forest fires in South Korea, there are calls for the introduction of an aerial fire suppression system that uses Air Force transport planes. What is this system?

Forest fires have been occurring all over South Korea since the 21st of last month, and the scale of damage is the largest in the country's history. Although the fires were put out in the afternoon of the 30th of last month, about 48,000 hectares of forest have been burned.