Why do Vietnam scare of Taiwan, but not China

[21stCentury]

Not retake.
Paracel and Spratly never been controlled by Chinese before 1956.

The earliest historical records shows otherwise.

Btw, when was Vietnam in possession of these islands when Vietnam itself was in the possession of the France imperialist empire between the times of being a a loyal Protectorate of China and present day self-governing Vietnam?

 

[biendong]

The earliest historical records shows otherwise.

Btw, when was Vietnam in possession of these islands when Vietnam itself was in the possession of the France imperialist empire between the times of being a a loyal Protectorate of China and present day self-governing Vietnam?

Nop.
early historic record of China , your ancestors stated that there is Jiao Zhi Sea. No words stated that there is sea territory of China.

From 1948, KMT issued Nine dashed Claim of China after WW II.

In the past, France was Protectoriate for Vietnam only. Islands is under administration of Annam Empier in Hue city.