Which POWs were/are typically treated the worst?

ISTR that the US troops didn’t take a lot of Japanese prisoners either…

Although not at war there has been numerous border clashes between India and Pakistan. There was a report recently that a captured Indian officer was tortured beyond imagination by the Pakstani forces and when his body was handed back it caused a big uproar for he cruelty that was quite clear to see.

There are a couple of reasons for this, the Japanese used the tactic of ‘I surrender, suckers’, faking surrender then attacking. Although it’s open to interpretation Americans at the time believed that the Goettge Patrol in 1942 had been wiped out almost to a man by a fake surrender. Doubtless many of the same reasons of mutilation of the dead came into it, revenge, brutalisation, dehumanisation and so on. It’s been argued that the nature of jungle warfare was a disincentive, in that it happened at close range and attempting to take prisoners rather than shoot would get you killed.

There are exceptions to the rule though, see the extraordinary story of the ‘Pied Piper of Saipan’, and that the Japanese PoWs numbered in the thousands at Okinawa.

The German High Command issued an order in 1945 that the sniper’s badge had to be removed before capture, since predominantly Soviet troops immediately shot every captured enemy sniper wearing it.[1]
[1] Sniper's Badge - Wikipedia (there is an additional cite in the German Wikipedia article)

I missed this on the first read through, at least the Geneva Convention nonsense. This was the bullshit attempt at a justification made by Adolf Hitler for the clearly illegal Commissar Order issued by him before invading the Soviet Union that all political commissars were to be shot out of hand, the pertinent parts of the order reading:

As to this tripe about the USSR not being a signatory of the Geneva Convention of 1929, it is perfectly clear that Hitler himself knew the order was illegal as when issuing it he also pardoned in advance any German soldiers who broke international law, in his own words:

Russian Tsar Nicholas II had in fact convened the 1899 Hague Convention, one assumes he meant the Soviet Union as a distinct entity from the Russian Empire hadn’t. This still leaves the order illegal though: