Continuing my CP victory scenario.
By 1965 the Japanese Empire believed that it was finally at a point where it must invade and permanently cripple China. The Hongxian dynasty over the last 3 decades had slowly been reforming China and making attempts at recentralizing the empire threatening the Japanese Supremacy in Asia
Prelude
Oct. 1st 1964 Chinese nationalists assassinate Emperor Puyi in Manchuria (Japanese Puppet). Beijing denies any involvement in the attack and issues a formal apology and offers reparations which Japan refuses.
October 17th 1964 Japan issues the Thirty Demands to China a list of entirely unreasonable demands from China, including essentially dismantling the central army and handing many cities along the coast to Japan.
October 20th 1964 China accepts only 14 of the demands and Japan refuses arresting the Chinese embassy staff in Tokyo and ordering all Japanese citizens to leave China.
November 1st 1964 Germany, UK, France and the USA issue a joint statement requesting a stop to Japan's actions and offering to mediate.
November 15th 1964 Japan ceases all diplomatic talks with China,
November 24th 1964 Japan secretly opens communique with the Soviets hoping to secure an alliance and convince them from the west. Premier Kuzmin rejects the Japanese offer of alliance but agrees to not support China in any potential war with Japan.
December 7th 1964 A German spy plane notes a massive build up of military and aircraft in Northern Korea.
December 19th 1964 British ships around Hong Kong report a massive movement of Japanese ships to Macau, a Japanese allied city.
January 4th 1965 Japanese military takes control of Guangxi and Guangdong from the local authorities placing them under Marshall law.
Initial Invasion 1965
Feb 2nd 1965
At 7 am on Chinese New Years Chinese border guards along the Manchurian border report a several hundred Japanese planes flying close to the border. Believing this to be a trick to get their military to fire at Japanese planes outside of their air space Beijing orders them not to fire.
At 7:45 AM Japanese planes enter Chinese air space.
8:03 AM Chinese ground forces open fire on the Japanese air group. China rushes to get its air force into the air.
9:00 AM Chinese air force engages Japan 40 miles north of Beijing.
10:00 AM 17 bombers and 200 fighter planes (including 48 Mitsubishi Paektuzan M-324 a state of the art jets) break off from the main force and head to Beijing.
10:42 AM 7 nuclear warheads as well 30,000 pounds of Sarin gas are dropped on Beijing. By the end of the day approximately 2.4 million are dead which would rise to 4 million within a month.
7:00 PM 4 warheads are dropped on Shanghai
This is the first time nuclear warheads are deployed in war.
February 3rd
3 nuclear warheads are dropped on Hangzou
February 5th
Japan achieves air supremacy over Northern China.
Germany declares war on Japan.
Britain, the United States and France declare an embargo on Japan.
February 6th
Ground invasion from Northern and southern China begins.
July
By July the Chinese frontlines have collapsed and with no government the military ceases power moving operations to Nanjing.
1966
China moves capital to Lanzhou.
China manages to somewhat stabilize temporarily. Gains are made in several areas and defenders in Nanjing are able to repel attacks for nearly 3 months.
Japan has used approximately 37 nuclear warheads, over half of its arsenal and with inability to acquire more due to the embargo launches one last nuclear strike against Nanjing before deciding to return to conventional war.
1967
Chinese central authority collapses. Isolated military units attempt to fight off Japan but with no central command Japan is able to execute most of her campaign goals. The Japanese face more resistance behind their own lines than at the front.
Chinese defenses are once again overwhelmed as Japanese attacks cut them off entirely from the sea. Tibet officially shuts down its air space to allied planes fearing reprisal from Japan. However, Germany and the UK continue to send support to China over this air space. Tibet does not retaliate.
Japan occupies Indonesia leading to a declaration of war against them by France and UK.
German fleet withdrawals from the pacific after Indonesia is taken.
1968
What is left of the Chinese army mostly surrenders. Insurgency will continue until the Japanese are forced out of China, but for now the Japanese are victorious.
Aftermath
In total 21 million Chinese people are dead including 4.7 million combatants. 1.6 million Japanese are killed in the war.
With war breaking out in Europe the Soviets and Japan form the Eastern Axis.