18 June 1965 was the opening day of Arc Light. Hence where Jenkins is heading with his suggestion, I'll wager.
But also the Indonesia/Malaysia confrontation.
How about Loeng Nok Tha airfield - which was built and then handed over to the Thai government by Commonwealth troops at that time - Operation Crown?
Also, just spotted this - coincidence?
The NHBC-style problems were, presumably, related to the tarmac runway which had to be dug up (due to ground water/cracking) and concrete put down to replace it?