Did the Wa state join Myanmar voluntarily?

No, the Wa people have nothing to do with the Chinese Expeditionary Force.

Wa region belonged to China from the Tang Dynasty to the middle of Qing Dynasty, and gradually separated from China from the middle of Qing Dynasty. When Britain colonized Myanmar, it had demarcation negotiations with the Kuomintang. Later, due to the outbreak of the Anti-Japanese War, the remnants of the 8th Army and 26th Army of the Kuomintang Army fled to the Wa area at 1949 and took control of the area. 196 1 year, China-Myanmar agreement came to Myanmar, 197 1 year, Myanmar * * * production party took control of the area, the Central Military Region was established, and the present Wa Autonomous Region in Myanmar was created.

There may be descendants of soldiers of the Eighth Army and the 26th Army of the Kuomintang among the Wa people, but there are no descendants of the Expeditionary Force.