"Let them eat
In 1933, 6,114 people classified as "outdated elements," which is both a strangely innocuous name for people so unwelcome they were sentenced to death, as well as a pretty sweet title for our '80s techno band. The outdated elements were sent to Nazino Island in Siberia. 27 of them died on the journey.
They were the smart ones.
Anyone who tried to escape was hunted for sport by the soldiers. There were no shelters or animals on the island, little vegetation, and absolutely no food. It didn't take long for the prisoners to start eating the dead, and then helping the living become the dead a bit faster so they could eat them too. Here's a detailed account of a girl stranded on the island who suffered this very fate, but you shouldn't read it without first looking at pictures of kittens for an hour.