Drumnakilly

But for men like George, this is personal.

George was the ground commander for the Drumnakilly operation codenamed Triennial in 1988, four miles south of Oma.

The plan was to arrest an infamous active service unit of the IRA who'd been responsible for a spate of killings over the past few months.

By 1988, the IRA had become far more sophisticated and far more effective at killing.

It's offensive.

It's offensive.

The secret Drumnakilly operation is typical of SAS work in the Northern Ireland conflict.

And over the next seven episodes, we'll hear firsthand about many more.