I didn't say it has been... but fact, Thailand rolled over, onto its back, and allowed the Japanese in, which enabled Japan to capture Singapore, the enslave Allied soldiers, Thai nationals and Burmese to build the Thai Burma railway... many died.
This, in fact, broke the timeline of friendship, between Britain and Thailand, you can spin it anyway you like... but the friendship, as per my comment, and the article, was broken, so 170 years is total BS, and an insult to all those who suffered, and especially those who where "murdered."