为什么二战时日本没有殖民泰国？

Nasa Saze, studied at Japan
I can tell you the story from Thai history during the WWII. Thailand was in good ally with British government before it was invaded by Japan. British government sent the news to Bangkok that Japan will use Thailand as the base for attacking Malaysia and Burma, but did not send further help as they believed Thailand will fall under Japan power. Thai government at the time was under General Plaek Pibunsongkram's regime. Since British did not send any help and Thai army did resist shortly and gave up the fight and signed to ally with Japan.
Japan want to ally with Thailand with bilateral relationship by giving Thailand to control its internal affairs. Thai government was forced to declare war with The Allies Power, but there was a group of elites who did not agree with the government's decision on declaring war with other western nations and they performed underground resistance during the end of the WWII. Thailand was attacked greatly by the western air forces until the war ended. Those who opposed Thai government under General Plaek helped the Allies Power to win the war and overthrew General Plaek from the government. By that helping action, Thailand was punished a little after the war ended. After the war, Thailand lost about 7,600 lives (about 2,000 are civilians) which is quite little comparing to the loss in Malaysia and Burma.
I have to say we were lucky that Japan had different intension when they forced an ally with Thailand.

我可以告诉你二战期间泰国的历史。在被日本入侵之前，泰国与英国政府是友好的盟友。英国政府向曼谷发出消息说，日本将利用泰国作为攻击马来西亚和缅甸的基地，然而由于英国认为泰国将被日本的军队征服，所以没有向泰国提供更多的帮助。当时的泰国政府处于普拉克·比本松克拉姆将军的统治下。由于英国没有提供任何帮助，泰国军队在进行了短暂地抵抗之后，放弃了战斗，与日本签署了联盟协议。
日本想通过确立双边关系与泰国结盟，让泰国控制其内部事务。泰国政府被迫向同盟国宣战，但有一群泰国精英不同意政府向其他西方国家宣战的决定，在二战后期进行暗中抵抗。泰国一直受到西方空军的猛烈攻击，直到战争结束。那些反对普拉克将军领导下的泰国政府的人帮助同盟国赢得了战争，并推翻了普拉克将军对政府的控制。由于这种帮助行动，泰国在战争结束后只受到了一点点惩罚。战后，泰国损失了大约7600人(大约2000人是平民)，与马来西亚和缅甸的损失相比微不足道。
我不得不说，我们很幸运，当日本强迫泰国与之结盟时，他们的意图不在这里。

Sumayya Khalid
Indeed, I always wondered in this part of the history. What I was told is the king of Thailand told the Japanese that you can come to my country, but leave my people alone.

的确，我一直对这段历史感到好奇。我听说，泰国国王告诉日本人你们可以来我的国家，但不要伤害我的人民。
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Nasa Saze
I have to edit my comment here since I've just realized that in the time of the WWII was the reign of King Rama VIII, not VII as I earlier mentioned, and he had no power at the time because Thailand had become constitutional monarchy and King Rama VIII was very young and he did not stay in Thailand. The king could not say anything to anyone as he had no real power and too young to involve. Japan did bad things to some local Thais who opposed them, but those unspeakable things was not as many as it happened to people in China. This is why Thais forgot about Japan's invasion faster than Chinese.

我要编辑一下我这条评论，因为我刚刚意识到,二战期间是国王拉玛八世统治泰国的时期,而不是我之前提到的七世,当时他已经没有权力了，因为泰国当时已成为君主立宪制国家,国王拉玛八世非常年轻,而且他不在泰国。国王不能对任何人说任何话，因为他没有实权，又太年轻，不能参与其中。日本对一些反对他们的当地泰国人做了坏事，但是相比中国，在泰国，这些难以用语言形容的坏事并没有那么多。这就是为什么泰国人比中国人更快地忘记了日本的入侵。

Mark Owens, Studied Military, Political, and Economic History since I was 12 yrs old.
The Japanese convinced the Thai government to ally with them, essentially after moving troops into Thailand. The Thai government (and people) decided that there was more to gain at that time from cooperating with Japan. I think it was the Japanese 56th division that moved into Central Thailand from French Indochina while other forces landed in Thailand close to the Malay border, preparatory to pursuing the campaign South into Malaya towards Singapore and also Westward to Rangoon in British held Burma.
In fact, the alliance allowed the brief Thai-French Indochina war to occur and, IIRC, Thailand managed to regain some Thai claimed territory heretofore held in the region of French Indochina. I don't think the relationship lasted the entire war, but they were occupied by Japan and isolated from most Allied forces so there was little which could be actively done in opposition.
In answer to your question, then, why invade when you can persuade the nation to either side with you and/or accept some occupation?

日本人说服泰国政府与他们结盟，特别是在日本军队进入泰国之后。泰国政府(和人民)认为当时与日本合作会有更多的好处。我记得是日本第56师从法属印度支那进入泰国中部，而其他部队则在靠近马来边境的泰国海滩登陆，准备向南推进到马来亚和新加坡，也向西推进到英属缅甸的仰光。
事实上，该联盟允许了短暂的泰法印度支那战争的发生，并且，如果我没记错的话，泰国成功夺回了一些他们主张的领土，这些领土此前隶属于法属印度支那地区。我不认为这种联盟关系贯穿了整个战争期间 ，但他们被日本占领，与大多数盟军隔离，所以他们没有采取什么积极的行动反对日本。
现在回答你的问题，那么，当你可以说服这个国家与你站在一边或者接受某种程度的占领的时候，为什么要入侵他们呢?

Manaswee Wongsuryrat
Just one correction, the Franco-Siamese war happened before the Japanese invasion and the engagement were purely between Thai army and the French Indochina army. It's an ambition of the Thai nationalism government after known that France fell to the Germany in Europe and several protests in Bangkok propose the reclaiming of loss land. It's start when Thai government propose to the Vichy France to adjust the territorial border but had been rejected by them. Thai army launch an attack and dominating the joint French-colonial army inland but Thai army lose the battle at sea in the battle of koh Chang. After that the negotiation was occurred with the Japanese government as the mediator, as a result France decided to cede the land occupied by Siamese army to Thailand. This is one of the reason that Thai Government didn't expect the attack by the Japanese afterward since the relationship in that periods between both countries are pretty good.

更正一下，法-暹罗战争发生在日本入侵之前，而且交战双方纯粹是在泰国军队和法属印度支那军队之间。这是泰国民族主义政府在得知法国在欧洲被德国占领以及在曼谷的几次抗议活动中提出要收复失地后的雄心壮志。这场战争始于泰国政府向维希法国政府提出调整领土边界的建议，但遭到法国政府拒绝。泰国军队发动了进攻，并控制了法国殖民联合军队的腹地，但泰国军队输掉了象岛海战。随后，法国以日本政府为调解人进行谈判，最终决定将暹罗军队占领的土地割让给泰国。这就是为什么泰国政府没有预料到日本之后的攻击，因为在那个时期两国的关系很好。
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Lucius Tan, Cambridge Educated Road Sweeper (1997-present)
The main reason was that Thailand was independent and not a colony. All the rest of Southeast Asia were colonies of one of the European powers and Japan’s propaganda said that she was going to liberate Southeast Asia from the western powers. In that Japan hoped that the Southeast Asia countries would be beholden to Japan for helping them.
With that in mind, Japan couldn't well invade and attack the only independent country in Southeast Asia right?

主要原因是泰国是独立国家，而不是殖民地。东南亚其他地区都是欧洲列强的殖民地，日本的宣传说她要把东南亚从西方列强手中解放出来。日本希望东南亚国家会因此感激日本的帮助。
考虑到这一点，日本就不能入侵和攻击东南亚唯一的独立国家，对吧?

Torben Retboll, lives in Thailand (2006-present)
This question is based on a false assumption.
Japan attacked and invaded Thailand in December 1941. Thai forces tried to resist. But soon it was clear that Thailand could not stop Japan. Therefore, the Thai government decided to surrender and it was able to make a deal with Japan:
Thailand was allowed to keep its government, but there were two conditions:
Thailand can never speak or act against Japan.
Thailand must allow Japanese troops to operate in Thailand or to pass through Thailand on the way to Burma.
Towards the end of the war Thai politicians realized that Japan and Germany were going to lose the war. Therefore, they changed sides and allied themselves with the American side. For this reason, Thailand was only punished lightly, even though the Thai government had supported Japan during most of the war.
The Thai prime minister who had worked with Japan during the war became prime minister again after the war.

这个问题是基于一个错误的假设。
1941年12月，日本入侵泰国。泰国军队试图抵抗。但很快，结果很明显，泰国无法阻止日本。因此，泰国政府决定投降，并与日本达成协议:
泰国被允许保留其政府，但有两个条件:
泰国永远不会说或做反对日本的事。
泰国必须允许日本军队在泰国活动，或者在前往缅甸的途中途经泰国。
战争快结束时，泰国政客意识到日本和德国将会输掉这场战争。因此，他们改变了立场，与美国结盟。由于这个原因，泰国受到的惩罚很轻，尽管泰国政府在战争的大部分时间里都支持日本。
战争期间曾与日本合作的泰国总理战后再次出任总理。

Ricky Soong, studied at University of Nebraska-Lincoln
From the start of the Pacific war, the Imperial Japan was eager to invade British colonized Malaya and Burma. They then pressured the Thai government to give passage for their troops to station in the geostrategic Thailand. Realizing they had little to resist against the Japanese, The Thai government considered a cooperation with them.
It was because of their "clever" that Japanese requested it prior to directly invading them. The British didn't invade Thailand because they were clever to co-operate with them. Same happened when Japan turned disadvantaged in the Pacific war, they allied with the US.

从太平洋战争开始，日本帝国就急于入侵英国殖民的马来西亚和缅甸。随后，他们向泰国政府施压，要求政府允许他们的军队在具有地缘战略意义的泰国驻扎。泰国政府意识到他们对日本人无力抵抗，就转而考虑与他们合作。
正是因为他们的“聪明”，日本人才在直接入侵他们之前提出要求。英国人也没有入侵泰国，因为泰国很聪明地选择与他们合作。同样的情况也发生在日本在太平洋战争中处于不利地位时，泰国又选择了与美国结盟。

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