Throughout history, Japan was never fully invaded or conquered by foreigners. In 1360, Tughlugh invaded Transoxania and conquered it. Throughout history, Japan was never fully invaded nor colonized by foreigners. In response, the French invaded the Ruhr and occupied it. On 4 August 1914, Germany invaded and occupied Belgium. The Mongols subsequently invaded and defeated Hungary. Meanwhile, KMT troops had invaded Jinggangshan, leaving them without a base. Soon after Ottoman Empire invaded the republic and quickly reached Borjomi. Prior to the war Italy had invaded Albania and officially annexed it. In 391 they invaded Etruria and besieged Clusium. In 1841, they invaded Tibet with an army. In 1931, Japanese forces invaded Heilongjiang. By 642 they invaded southern Italy and assaulted Siponto. In August 1990 Iraq invaded and annexed Kuwait. In August 1990, Iraq invaded and annexed Kuwait.