Most people do not know that there were total 20 divisions of German trained Chinese soldiers in WWII. They were fully trained by German advisers, equipped fully in German style uniforms, helmet, and firearms. Here is a photo of them. Even when Sino-Japanese war first broke out, German advisers were working actively on the battlefield on the Chinese side. These German trained Chinese divisions were the elites of Republic of China military, but due to they lacked heavy weapons, they were still no match for the overwhelm firepower of the imperial Japanese forces. Half of them were lost in the Battle of Shanghai. The German advisers were recalled by Hitler after Japan repeated requested it. It officially ended the alliance between Germany and Republic of China which was formed on the common ground of anti-communism in the first place. If these German trained Chinese divisions had German tanks, heavy artillery, etc. do you think Japanese could have had their way in China?