On Wednesday, the presidents of Russia and the United States meet for the first time since the arrival of Joe Biden as head of the country.
The meeting will take place in Geneva, Switzerland, in a fairly tense atmosphere.
Relations between the two nations are "at their lowest", according to the tenant of the White House.
Will they achieve appeasement?
After having qualified Vladimir Poutine of "killer", Joe Biden meets, for the first time Wednesday, the Russian president.
The tête-à-tête takes place at midday on the shores of Lake Geneva, in Geneva.
But before these exchanges, the President of the United States still set a number of red lines.
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Joe Biden wants to stand out from his predecessor.
During his tenure Donald Trump, has never hidden his admiration for Vladimir Putin.
But since January, the new American president has re-established a balance of power between Washington and Moscow.
He repeats it: the United States is not seeking conflict with Russia, but will respond if Moscow continues "its harmful activities".
He refers to electoral interference and recent cyberattacks against US infrastructure carried out by Russian hacker groups.
Relations between the two countries are "at their lowest"
Relations between the United States and Russia are "at their lowest," admitted Joe Biden this weekend.
And Vladimir Putin is a tough opponent.
A White House adviser said he expected a "frank and direct" meeting between the two men.
It will also be a question of human rights, in particular the situation of the opponent Alexeï Navalny, currently imprisoned.
But Joe Biden above all wants to achieve a predictable and stable relationship with Russia.
Because the first competitor of the United States in the 21st century, it is not Moscow, but Beijing.