(Washington/Moscow Comprehensive) U.S. President Biden and Russian President Putin conducted telephone talks on Thursday to make their respective attention to the resolution of the Ukraine crisis and also warned each other.The talks between the two are paved by the series of diplomatic talks this month, but whether Ukraine's tension can be relieved in the short term remains to be observed.

Bayeng stated in the talks that Russia must reduce military forces near the Ukrainian border; Putin said that if the United States and its allies impose sanctions on Russia, they will break the relationship between each other.

They called on Thursday afternoon on Thursday, Eastern time. This was the second dialogue between the two for a month, which was proposed by Putin.Officials between the two countries described the tone of the call "serious", but neither side did not explain in detail what progress has achieved in advance solutions.

U.S. officials only revealed that Biden told Putin that there are two possibilities in the Ukraine crisis, that is, to resolve the crisis through diplomatic means, or face serious consequences.

Biden again emphasized that once Russia invades Ukraine, he will impose unprecedented sanctions on Russia.It is reported that possible sanctions include the connection between cutting off Russia and the global economic and financial system, while further providing military reserve for the North Atlantic Convention.

The White House spokesman Puski said: "President Biden reiterated that only in the case of tension, not upgrading, can the dialogue achieve substantial progress."

Russian President'sForeign Policy Consultant Ushakov told reporters that Putin immediately responded to Biden's "intimidation", indicating that any sanctions now or in the future "may cause the relationship between the two countries to be completely ruptured."

Putin emphasizes that the safety negotiations must be seen.

Ushakov said that overall, Putin is satisfied with this call, butThe emphasis on the safety negotiations must see specific results, because the negotiations cannot be carried out endlessly."We must see the results, we will promote the results of the talks to ensure that Russia obtains security guarantees."

Moscow proposed hoping to negotiate with the West a few weeks ago to obtain security guarantee, including the required NATO commitment to commit will not be on.Any military activities in Eastern Europe and Ukraine.

Putin and Biden agreed to the next safety negotiations in three rounds.In the first round, US -Russian officials were negotiated in Geneva from January 9th to 10th; on January 12, members of Russia and NATO talked in Brussels; on the 13th, all parties talk in the framework of European Security and Cooperation Organization.

In the past two months, Moscow has deployed tens of thousands of soldiers at the adjacent Ukraine border, which has aroused deep attention from NATO, and repeatedly warned Russia to enter Wu.The Russian side has repeatedly denied this intention and insisted that he has the right to deploy troops anywhere in his own territory.

The US current affairs journal foreign policy published a comment article on Russia's special ambassador to the United States on Thursday.He warned in the text that Ukraine's current situation is "extremely dangerous."

He said: "No one can doubt our determination to defend the safety of the country. Everything has a limit ... If our partners continue to adopt the military strategy that endangers our country's survival, we will be forced to give it toThey create a similar crisis. "