Expert: Failure of Russia-US agreement highlights complexity of all parties' bargaining.

Professor Diao Daming of the School of International Relations at Renmin University of China said that the meeting between the presidents of Russia and the United States was able to take place in a short period of time, fully reflecting the urgent need for communication on both sides. For the United States, Trump hopes to fulfill his campaign promise to promote a ceasefire between Russia and Ukraine as soon as possible. For Russia, being able to achieve battlefield demands through negotiations would also be a favorable choice. However, the Russia-US meeting ultimately did not reach an agreement, and experts believe that this highlights the complexity of the current game between various parties.