Update VI: The big gamble
And finally it came, what had to come. After the US oil embargo, Japan was left with a dilemma. It's strategic oil reserves were dwindling, if there was no way of solving the inherent lack of any oil producing territories. While newly acquired lands such as China and Indochina provided some oil to relieve the pain, the stockpiles were dwindling. Slowly, but steadily. Of course there was the option to give up everything the Empire fought for in the last 5 years. But there was also yet another option: Declaring war, grabbing as much territory as possible, and settling for a peace. The only honorable option was the latter, and on November 11, 1942, war was declared on the Allies.
Unfortunately for the Japanese and their Chinese puppet nation under Wang Jingwei was the fact that Pu Yi long awaited this very event. Ever since the oil embargo Pu Yi had awaited such a gamble by the japanese, hoping they would divert their attention, so Manchuria could incorporate China in it's own realm. After immideately renouncing the membership of Manchuria due to the war, Pu Yi ordered full mobilisation of the forces. The tactical airforce the Manchurians had hidden for so long was finally ripe for the testing and redeployed on newly constructed airfields across the border, main operating bases being Yan'an, Changzhi and Jinan.
By the end of November 1942, hundreds of dive bombers swarmed across the border, and troops long awaiting their task of liberating China were sent southwards.
One by one, divisions under the iron sights of swarms of divebombers dissipated. The Japanes, having focused largely on their navy and army, kindly neglected the need for a larger airforce, and only token resistence by the means of counter-bombing manchurian troops was under way. Pu Yi was pleased. The enemy had a large numerical advantage over Manchuria, but any large scale assault was checked by supreme airpower, and any rout was another desaster, as fleeing units were mere cannon fodder for the now more than 40 wings of divebombers.
As thousands of troops perished under fiery flames of cannons and incendiary bombing be relentless divebombing, the Manchurian army marched mainly unchecked through enemy territory. The only real resistance was put up in Korea, where a quick success, after securing half of northern Korea, was not possible and a hasty retreat back to the orginal border had to be ordered, as well as the capital region around Nanjing, were resistance was stiff. Yet every rout was quickly rendered a desaster for the fleeing nationalist chinese and japanese.
The speed of advance in the central region of China was only slowed by terrain, but by the end of January, 1943, the major industrial hub of the Chongqing/chengdu area was occupied, until finally meeting resistance in the mountains of Yunnan.
The first advance was being halted when Manchurian troops arrived at the Yangtse river. Unchecked, rapid advance was on thing, running out of supply another. It was also at the Yangtse tht first real resistance was put up which would only be drowned by Manchurian shells when the capital region would fall. It was up for the dive bombers to do strafing runs in order to assure that no uncontrollable situation would arise.
Japan, meanwhile, was in a precarious situation. On the one hand it had deeply advanced into Burmese territory, threatening to wreak havoc on India, but also was stretched fairly thin in China itself, plus Korea, which was by no means safe.
With resistance in Hankou put down, and every territory north of the Yangtse river occupied and in firm grip bar the capital region, an offensive to take Nanjing commenced in early April. Massive airsupport helped in that effort tremendously, and Nanjing fell in early May of 1943. Unchecked harassing of Japanese tactical bombers was of some concern for Pu Yi, but the distinct lack of a coherent striking power made their attacks mere needle strikes in the war effort of Manchuria.
At the homefront, on the korean border, not much did change. As the initial attacks were soundly repulsed, more and more japanese troops poured in, after Manchurian troops failed to get the korean peninsula under firm grip. Only with 12 divebomber squadrons at hand, Manchurian troops were unable to force a victory, a hard learned lesson. It was proven, in a healthy fashion, that Manchuria was not invincible, and in fact only those dive bomber wings saved Manchuria from great evil. A routing of defenders in Andong once almost ushered in a desastrous breakthrough, and only throguh sheer luck and major aerial operations, desaster was avoided.
In early June, the final nail on the coffin of National China under Wang Jingwei was in place. With Nanjing, the much contested capital, finally under control, the last regional stronghold of Hangzhou was finally beaten. With Shanghai surrounded, the destruction of the remaining defenders was imminent. In central China, the other last great offensive was under way. Changde, a stronghold with up to a dozen defending enemy divisions, was brought to submission. The scarred defenders were picked apart by ravaging bombers, leaving a trail of death. In a matter of days, entire divisions were pulverised, due to massive incendiary attacks, conventional raids as well as mass abandoning of equipment. A lot of divisions seemingly just stretched their arms, wrapped themselves in civilian clothing and joined the massive refuge treks southwards.
In July, China was reduced to a mere couple of provinces guarded by no one, and on August 19, 1943, National China accepted annexation by the Manchurian empire.
China was brought to it's knees. But Japan was very much alive and kicking, advancing into India proper already. It would be a vast task to defeat it, but task Manchuria had to accomplish, if Pu Yi wanted his Manchu Empire truly glorious. His new empire was vast, and potentially very very strong. But only on paper. The army is a mere occupying power, no match for european and american ones. For now, the airforce fulfils it's role, but a new, heavily equipped army would be needed to successfully compete in the challenges up ahead.
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Edits done:
- edited myself out of the Japanese led alliance... i didnt expect them to dow this early, usually it's in December.
- peace with the Allies, due to the above.
- cores for mainland China added after annexation of National China.