So many things could have gone wrong as aninternational team of divers, experts and military personnelworked together at Tham Luang cave system in Mae Rai, Thailand, this summer to try and save12 members of the local Wild Boars soccer team and their coach.

No one outside initially knew if they were alive or even if they could be reached, let alone if they could survive the return journey through treacherous, water-logged passages.

“The odds were so stacked against these people,” says Matt Gutman, ABC News’ chief national correspondent, who arrived on the scene on July 4 and who spent the next two months reporting on what he saw. Theseemingly impossible missionhad an amazing twist:it was a success.

“It was so much more complex and so much more heroic and so much more miraculous than anybody thought possible,” Gutman, 40, says.

But how did they do it?

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Thai Navy/Polaris; AP

Thai Navy Seals lead rescue of teens trapped in cave

Ten days after the team was trapped, it was confirmedthat they were still alivedeep in the cave. The news sent a jolt of energy and renewed focus through rescuers (and relieved the boys’ anxious parents).

But the news also emphasized a problem the officials were facing. The Thai government had promised to pursue only risk-free options, according to Gutman. This included possibly leaving the team inside Tham Luang for three or four more months until the monsoon season ended and the water abated. The challenges of the cave system made the idea of continually ferrying air and food to the boys and their coach seem more and more like fantasy.

“Swimming them through without sedation would have been terrifying for the boys and possibly dangerous for the divers,” Gutman writes, “so the only option to mitigate possible trauma and enable the divers to do their job was knocking them out.”

As diver Jason Mallinsonexplained to ABC: “I can’t have him [one of the boys] twitching around. He could have harmed himself. He could have ripped his face mask off and then he was dead. It was much better for me to sedate him and keep him under, in my opinion.”

William Morrow

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Cave Search, Mae Sai, Thailand - 02 Jul 2018

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Cave Search, Mae Sai, Thailand - 03 Jul 2018

The unprecedented plan was put into action with the key aid of Australian Dr. Richard Harris, whom Gutman describes as a “unicorn” for his fortuitous overlapping skills as an anesthesiologist and cave diver. Harris has also been involved in previous rescues.

As the rescue operation dawned, each boy was given Xanax and then dosed with ketamine and atropine, a drug to dry up their lungs and mouth to prevent choking. They donned wetsuits and specialized full-face masks.

They were told that the pill would make them feel a bit strange. But when they woke up, they would be free.

PONGMANAT TASIRI/EPA-EFE/REX/Shutterstock

Cave search continues for members of football team missing in northern Thailand, Chiang Rai - 01 Jul 2018

The boys’ parents were informed of the rescue but told to keep it secret, Gutman writes. What they didn’t know was that their children were being sedated for the mission.

Weeks later, when Gutman returned to the area in late August, the parents were still unaware of that part of the rescue. “It was a complete secret,” he says.

Despite the many risks, the rescue worked. Not a single member of the team or their coach perished or even sufferedlasting physical damage, according to observers.

Vernon Unsworth, a 63-year-old cave expert from the U.K., assisted the rescue and briefed the divers. He says: “Possibly some people are thinking, ‘I don’t believe this happened.’ But it did.”

source: people.com