Although the original territory was reduced to Kinmen and Matsu Islands, the ROC had obtained control of the island of Taiwan and Penghu from the Empire of Japan in 1945, a controversial status that remains legally debated to this day.
The original territory was reduced to Kinmen and Matsu Islands, but the ROC gained control of Taiwan and Penghu from Japan in 1945, which is a contentious issue that continues to be legally debated today.