There were quite a number of Chinese Americans who went to China to join ROC Air Force after the Japanese Invasion.

I attended a funeral of 1 in Rosemead, California back in 2010. He joined the Guangdong Air force in the 1930s. Chiang Kai-shek didn't trust those frm warlord armies and used them as cannon fodders. Amazingly he survived the battle of Shanghai, tho most of his wing mates died.

After the Japanese surrendered, he didn't want to fight the Civil War, defected to the Communists. Got sent to Manchuria as a flight instructor to the new Communist aviation school.

He later moved w Lin Biao's army from Mamchuria to Guangzhou. Even tho he 's Cantonese,because his family grew up in compounds of Chinese Air Forces where many from Dongbei, his children grew up speaking Mandarin.

He eventually retired from the Chinese Air Force and in the 1980s moved back to California. His grandchildren served in the US Air Force. Quite a life lived.