In order to deal with Cao Kun and Wu's Beijing regime, Sun Yat-sen formed a "triangle alliance" with Duan and Zhang Jian. 1923, when Sun Yat-sen wrote to Zhang, he also sent a copy of "The World Is Public" Mo Bao and a personal letter to Zhang Xueliang, and Wang Jingwei personally delivered it to Fengtian (now Shenyang). Sun Yat-sen's letter is as follows:

Han Qing's good friend Hui Jian:

Learn everything by reciting calligraphy. It is a special knowledge to hold a calm attitude temporarily in Feng Province. Wen Qing wrote a letter to respect the public, explaining that after military action, it is appropriate to attack from the southwest, and according to the dangerous situation, it is deadlocked with the enemy, making it want to advance and retreat. Then Zungong led his troops straight to Beijing, and made a brief plan for Tianjin to recover its lair, so that the enemy was completely destroyed, which coincided with the brilliant view. I hope that one day you can make a decisive decision. After several days of deliberation, Han Lai was gratified to learn that the three northeastern provinces were well-equipped and ready to go, and won a great victory. I'm here to pay tribute to you, Wang Jingwei, and tell you everything. Your contact will be appreciated. Special reply