The Karakum Desert covers roughly 70% of what "stan" nation?
About 70% of Turkmenistan is covered by the Karakum Desert, which spans 135,000 square miles. The population in the desert is extremely sparse, with one person inhabiting every 2.5 square miles on average. The name Karakum translates to “Black Sand,” and the desert contains a limited amount of wildlife — primarily small populations of turtles, lizards, and rodents.
Source: Britannica