One "incident" that took place in this region involved a bomb set by Suemori Kawamoto, and this region was the site of a siege at which Oskar Stark's fleet was defeated.
This region was once divided into three kingdoms, one of which was Yeren. One native of this region suppressed a rebellion under the Prince of Gui, and this region is divided from a nation its natives conquered by the (*)  Willow Palisade. This region's people were led by Dorgon, a leader of the Kingdom of Haixi. One "incident" that took place in this region involved a bomb set by Suemori Kawamoto, and this region was the site of a siege at which Oskar Stark's fleet was defeated. This region was the location of a Japanese puppet state ruled by Emperor Puyi, the last emperor of a dynasty sometimes named for this region. For ten points, name this region whose natives established the Qing Dynasty.
This region was once divided into three kingdoms, one of which was Yeren.
Manchuria  (accept Manchoukuo)