JANZAC

JANZAC (Japanese Australian New Zealand Army Corp) is a military alliance founded by Japan, Australia and New Zealand after their large cooperation during the Great War. Japan's entrance into JANZAC led to their democratisation and Australianisation.

Main article see: Chinese Warlord Campaign
In 1928 Japan was seeking to expand their influence in Asia, they turned to the fractured state of China, recovering from the death of Yaun Shikai, the republicans were on a war path that would be a tough battle to undertake, the constant infighting of the Guomindang along with Sun Yat-Sen being constantly challenged they were in no place to reform their nation. This is when Japan came to the Chinese and offered to give their full support for the republicans, in exchange for helping the GMD against their warlord problem Japan asked for trade priority above anyone else during and post the campaign. The campaigns ended in October 1929

Chinese Addition to JANZAC
Not long after the campaigns ended in 1929 Japan and the other JANZAC members demanded further compensation for their help in the campaigns, they demanded that Japan have unrestricted access to China's railroad system, China rejected the demand and instead proposed that China be a fully fledged member of JANZAC. The delegates voted and by 1930 the Beijing accord was signed and China was officially a member of JANZAC.