After sharing operational methods and other information, he learned additional basic rescue techniques, such as how to use hydraulic demolition tools and new ways to tie ropes, which will improve his rescue capabilities.

He said all the soldiers from both sides exhibited high levels of professionalism and were meticulous in their work. Whether pounding in a nail or tying a rope, they would do it again if the result was substandard.

"Because we all know that the more solid our skills are, next time when we come across someone who needs our help, the more likely they are to survive," Yang said. "This is the common ground we reached at the very beginning of the exchange."

Dong Bo, the Chinese leader of the medical team, said the Chinese troops had worked well with the eight US soldiers who joined the team. From emergency care to follow-up medical treatment, they completed every step together.

Even though there was a language barrier, body language and translation apps meant they had no problem communicating.

"Everyone was involved and got along very well, which I think helped enhance mutual cooperation in humanitarian assistance and accumulated valuable experience," he said.