It is suggested that during a period of rule under the Mongol Empire, Korea (then under the late Goryeo Dynasty) began to see a number of changes to its military, some of which endured through the Joseon era that followed the end of the Goryeo Dynasty in 1392. Japanese paintings of Korean/Mongol warriors during the two Mongol invasions of Japan (1274 and 1281 AD) show Mongol forces made largely of Korean and Chinese conscripts with shields and Mongol-style armor elements. The shields do not appear to have lasted as an influence, but examples of Joseon-era Korean armor often show adoptive influences from the Mongol period.