What is the mystery behind Putin's call to Obama? What is the impact on the future?

Some people think that this is Putin's weakness in the White House and his peace with the United States. So why did Putin call Obama at this time? Is Obama a sign of weakness or strength? What's the mystery behind this? What kind of deal do the United States and Russia want to reach? You know, since the end of 20 13, the United States and Russia have made enemies on the Ukrainian issue, and the situation is getting worse. At the beginning of May this year, all American allies were absent from Russia's Red Square military parade commemorating the 70th anniversary of the victory of the Great Patriotic War, which was a new climax of the deterioration of US-Russian relations.

However, this did not scare the Russians. The Red Square military parade was still successfully held, and the hot chat between China and Putin was also broadcast live all over the world, which really made people shine. Therefore, the day after the military parade, German Chancellor Angela Merkel visited the Kremlin and had good talks with Putin.

Because the in-depth talks between Kerry and Putin did not promise each other, the situation of rapid easing of relations between the two sides did not appear immediately. The situation in Ukraine has not only become worse, but even the United States and Russia have confronted many military aircraft and warships in the Black Sea. The military deployment of NATO and Russia in Eastern Europe is even more tit for tat.