<human>: Edit: ANZAC should be capitalized in the title. Apologies! It's very early here. Close to 4 am now. I'm up early for the dawn service. 

My grandfather was very young when he served in World War II. He was station in the Asian pacific (I know because of his badges and medals) and he was captured along with many other men. Including Edward 'Weary' Dunlop. Dunlop actually dug a bullet out of my grandfathers leg with a spoon while they were both imprisoned. My grandfather had been shot during his capture. 

Although I know about this, I don't know much else. My grandfather died of pneumonia when I was 13. He was always having breathing difficulty when I was a kid. I asked him about it once and he said "They used to leave us in barrels of water overnight if we got out of line. And we kicked up a lot of dust building the railway. Never been able to get my air properly since."

That was all I ever got him to say on the subject. As with most men who've been to war, he drank quite a bit, and didn't seem to want to talk about it. I found out years later that he was transported to Changi and at one point was forced to work on the Burma railway. I do know he came back very skeletal and tanned. 

So what I'm wondering is, do any of you clever redditors out there know any more about this? I've checked Google of course but the info is sketchy at best. I'd like to be able to understand more about what those men went through. If for nothing else than to understand my grandfather a little better on Anzac Day.

Provide a brief overview of the text.
<bot>: Would like to know more about what POW'S went through in Chang/AsiaPacific/Working on the Burma Railway, because my late grandfather was one.