At the maximum extent of their conquests in mid-1942 the Japanese occupied a vast territory.
In the north they controlled Manchuria, northern China and a series of enclaves along the Chinese coast. All of South East Asia was occupied except Thailand which had limited sovereignty. Japanese power also extended east into the Pacific including the Mariana and Caroline islands, and northern New Guinea. Its land advance was finally halted in Guadalcanal in the Solomon Islands between August 1942 and early 1943.