When did the Taiwanese fight the Japanese in WWII? Taiwan was part of the Imperial Japanese Empire (1895 thru 1945). The Taiwanese (along with the Manchurians, Koreans and Chinese in Japanese occupied areas) were drafted by Japan to serve as occupation and construction troops for the Imeperial Japanese Army. These non Japanese people were part of the Japanese Empire and had no choice but to serve when they were drafted. Today, China and Taiwan do not have any veterans of any major wars, thus their militaries for all practical purposes is green. Tibetans are unfortunately located in the wrong place (between two rising powers China and India), sparsely populated holding a large region (7 million Tibetans against 1 billion Chinese). The best the Tibetans can do is find the proper time to fight and the proper time to lay low, so their culture will survive until the Han Chinese replace their oppressive/corrupt government with a democratic one. Only then the Tibetan rights and possible independence/autonomy can be addressed. Right now, fighting is going to be awfully tough because the Communist Chinese after the Olympics will severely crush them.
No, the government in Taiwan is what was left of the non-Communist, non-PRC China, who fled there when the Communists under Mao took over. It was these Nationalist Chinese who ruled China when Japan had attacked it.
The current permenant seat at the Security Council which PRC holds, was originally held by Nationalist China- who now rule Taiwan under the name, ‘Republic of China’.