According to the search results, Mandalore was subjected to a catastrophic event known as the Great Purge during which the Empire bombarded Mandalore, slaughtered most of the Mandalorian population, and collected beskar. The Great Purge nearly wiped out the Mandalorian people and led to the exile of the remaining warriors to their moon Concordia, where they were believed to have died out sometime later. In the second episode of The Mandalorian, Bo-Katan describes the bombing of Mandalore by the Empire, which aimed to punish the Mandalorians and wipe away their memory. The bombing destroyed the once-beautiful civilization and left the planet in ruins, with only a few alien species running around. After the Great Purge, Mandalore fell under Imperial occupation. In the series, The Mandalorian, it is revealed that Mandalore is not as "lost" as previously thought, but it is still a tomb.