First of all, 0 1 is a question of historical remains. During the hegemony between the United States and the Soviet Union, the final result of the crazy competition between the two sides was the disintegration of the Soviet Union. Russia basically inherited everything from the Soviet Union, and so did its hostility towards the United States.

Secondly, on the Syrian issue, both sides invested a lot of money and troops in order to gain control and resources in Syria, so several conflicts broke out and intensified the contradictions.

Third, the United States covets Russia's vast territory and rich resources and regards Russia as an imaginary enemy.

Fourth, both Russia and the United States have interests disputes on NATO's European missile defense system, Iran's nuclear issue, Palestinian-Israeli relations and other issues, which also leads to further conflicts between the United States and Russia.

Fifth, the weapons market, as we all know, Russia and the United States are both big weapons countries, among which arms sales are a major economic source of the two countries, so there is a huge controversy in the competition of the weapons market between the two countries, and the competition between the two sides is fierce for profit.

Sixth, the United States has accelerated the deployment and adjustment of US troops in Europe, thus accelerating the pace of strategic expansion in Eurasia, which directly harms Russia's core interests. The territorial dispute in Ukraine is actually a struggle between Russia and the United States.