Airport workers at 15 major hubs in South Korea, including Incheon and Gimpo, will begin a nationwide strike tomorrow that could stretch through Oct 9, overlapping with the peak Chuseok holiday rush.

The dispute centers on exhaustion, safety concerns, and calls for improved shift schedules. Airlines are already bracing for widespread delays and cancellations that could hit millions of passengers.

Just how big will this strike be, and how badly might it disrupt travel?

On The Big Story, Hongbin Jeong speaks with Dr. Oh Ei Sun, principal adviser at Pacific Research Center of Malaysia and Senior Fellow at Singapore Institute of International Affairs, to find out more.