 on Thursday, June 28th. These are US Air Force rescue specialists and cave divers from the UK, Belgium, Australia, Scandinavia and many other countries. Some had volunteered and some were called in by Thai authorities. Others were roped in when it became clear just how monumental the search effort would be. Over the next few days, they and the Thai divers would fight a constant battle with the elements. They had to swim against a strong current and were often forced back by rising flood waters.