Morris Cohen was the head of Sun Yat Sen guard and the army supplier (There is always a lot of money in supplying armies).

To understand all the details of jewish involvement in China there is no escaping reading the references I mentioned but to sum it up:

The Rothschilds, Sassoon and Kadoorie jewish families sold China opium which they themselves planted in India in exchange for tea, silver and other things. The east India company was jewish. You can look up the Opium war and that history later.

These same families kick-started Hong-Kong and Shanghai cities (also HSBC) which were their dens for drug dealing.

China and India have crypto jews, Keifeng jews and various Indian crypto jewish families. They helped the subversion and enslavement of those places.

The two "nationalistic" movements the Kuomintang and CCP were both infiltrated. jewish bankers usually support all sides to stay on the safe side.

Sun Yat Sen was an important figure in the nationalistic movement, he was married to crypto jewess, that woman sister was married to Chiang Kai-shek.

Mao was also supported by the jewish bankers. (Mao fought against Chiang Kai-shek), but in a way both were subverted to various degrees but it seems they preferred Mao over Kai-shek because he was more brutal .

Some speculate that near the end of his reign Mao was not playing ball with his masters. The same as has happened with Stalin or Ceausescu but I am not sure. There are lots of details but you get the idea.