So your argument is because the US drops bombs in Laos (a weak country barely able to hold its periphery against a guerilla force of communists) will automagically apply to Thailand? An industrialized country which doesn't have an insurgency problem and its army is quite capable for its size ?
And the Thais will just let you in and in turn getting blasted by the US? the same way Bangkok was once blasted by the US.
Mind to tell you that Bangkok is the only 'friendlies' of China among the major state of ASEAN. For basically a gamble (which will likely get rejected), China risks a Thailand that is suddenly hostile to Beijing and in turn would even seeks US or Indian military protection.
Thailand doesn't have a border with China.
The last time a major Asian power uses their land under threat is the Japanese, and back then what is today Laos, Cambodia and Vietnam was known as Indo-China, ruled by the Vichy, which are allies to the Nazis, that allowed Japan to use the Vichy Indo China territory to demand Bangkok to let it move.
Today, if the Chinese would want to secure Thailand (a country of 71 million) they would have to make sure that Cambodia allows them to basically become the US military equivalent of Singapore, and this will attract worry from not only Thailand, but Vietnam a country of 100 million next door. The last time the Vietnamese are anxious about a China friendly Cambodia, they invaded it
en.wikipedia.org
See link above, they occupy the country until the 90s. They will do it again, this time with Thailand, and if the Chinese do something about it, the Americans and the Indians is all to happy to 'widen' the front on which could potentially divert China's focus and resources away from Taiwan.
Certainly is not the same, when the Japanese conquered SE Asia, it is nothing in terms of populations, mostly rural and unindustrialized. Nowadays if you want to neutralize lets say Indonesia, you have to fight your way and actually PHYSICALLY occupy their cities and prevent the use of their lands to hostile forces.
The fact that Chinese Ultranationalists simply came up with words like:
- I will invade Thailand
- I will invade Singapore
- I will invade India
- I will invade Indonesia
- I will invade Malaysia
Shows just how detached they are from reality. the combined population of these countries DWARFED China. Especially if you count in the fact that while China is big, they couldn't move all of those population by ships in one go. So not only China is facing sophisticated Western army, now another concern came along, our population is dwarfed the same way the German population was dwarfed by the Brits, French and Russians in WW1.
If ALL Chinese transport ships are used for the invasion of of SE Asia, once they landed, they will still be outnumbered by the local military in size. Because ships have finite number of the men they could carry and even more finite if you factor the fact that these men will need food, drink, ammo, and those things will come with them, further decreasing the amount of space for the men .
Unlike the Russo-Ukrainian war, you actually have to use ship to land here, and once you land, bet your entire yearly pay, that those ships that is allocated to supply these men once they landed will be targeted heavily. Once you get in, there's no guarantee that your ammo will be replenished tomorrow.
Everyday your troops stayed, the lesser ammo they have, the more the will fire sparely.
If these situation happened, whomever in charge of China's military planning will be given a medal by the US for making the US containment easier