Before Sino-Vietnam conflict 1979, 1975-1978, China give support to Khmer Rouge to kill their own people, and made several invasions to Vietnam lands, created massacres with thousand Vietnamese innocent people killed, ,million of Cambodian killed by Khmer Rouge under China advising ...
China makes a plan of attack Vietnam from both direction, by taking 3 years of building airbases for Chinese bombers in Cambodia by Chinese personnel and equipments.
China mobilized their army into Vietnam borders from October 1978, but wait for US response, before launching the attack in Feb, 1979. They worried about the Soviet intervene if they solely attack Vietnam.
China begin planning to attack Vietnam from October 1978.
Vietnam only start the hunting of Khmer Rouge in Cambodia from 25 Dec 1978 - 7 Jan 1979.
Vietnam Slaughtering Khmer Rouge regime, leave democracy goverment in Cambodia after few weeks.
Vietnam left nowaday peace and population in Cambodia,
China left massacres and destruction of infrastructure when they left Vietnam.
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Searching for China plan for the war, then you know that China plan it, even before Vietnam invasion to Cambodia.
they said nothing at all about crossborder raids of Khmer Rouge to Vietnam as that planned by themselves
I don't have opinion on Khmer Rouge, they are cruel, but I have some questions:
1. China give support Khmer Rouge, but from these, you mean we support it kill their own people and invasions to Vietnams?
At right time, ideology or something influence your foreign policy, Khmer Rouge was communist, not mean we support their behavior.
2. Why sino-Viet friendship will become bad? all Chinese fault? I can't understand, before you vietnam invaded Cambodia, why we need attack you? what China want get from you vietnam?
3. Because the friendship between Vietnam and China became bad, but China still give support to Cambodia, so you think we were preparing for the attack on Vietnam? it is a ridiculous.
4. The vietnam-Cambodia conflict start from 1975, you start massive invasion to Cambodia from 1978, if you just want overturn Khmer Rouge regime, why you stay there for about 12 years? and you also crossed Cambodia-Thailand border, fight Thailand? Why, what do you want from Thailand?
5. You leave democracy government in Cambodia? very ridiculous, you are autarchy country, how can you leave a democracy government in other country? it just can say that government is not cruel like Khmer Rogue, Ok?
6. We massacre your vietnamese? armed citizen who attack my soldiers or your soldiers? it is war, why can't kill your soldiers or citizen, give me the proof that PLA massacre innocent unarmed citizen? How many, if just a few, don't show it, it is war, as to destruction of infrastructure, why can't? in Vietnam war, how much materials and weapon we gave to you? now the war happend between you and me, we just destroy the thing we gave to you, and get the thing we donate to you back.
What's the real intesion of the war invading Cambodia, and trying to control Lao? do you really know or show your real intesion? You just make excuse to pass the buck, you are not clean.