At 4 pm Swedish time, Trump and Putin will talk on the phone, according to what the American president writes on social media.
The two will discuss how to bring an "end to the bloodshed", but also about trade, Trump wrote in another post on Saturday.
The call will make it clear where everyone stands and how the negotiations can be taken to the goal, according to Trump's diplomatic envoy Steven Witkoff.
They know each other. The President is determined to get things done here. If he can't do it, no one can, says Witkoff to ABC News.
Putin did not show up
Last week, the US-initiated talks came to a head, as demands and counter-demands from the parties ended with Ukraine's president challenging Vladimir Putin to meet him personally in Turkey. Russia's president did not show up.
A meeting between Russia and Ukraine took place at a lower level, but afterwards, it was said from the Ukrainian side that the Russians presented sharpened and unrealistic demands. The Kremlin is also accused from many quarters of deliberately delaying the talks.
The US's Donald Trump was behind a demand for a 30-day ceasefire that Ukraine's allies presented, but he later went out and stated that nothing will happen until he and Vladimir Putin can talk directly with each other.
After the conversation, Trump is expected to call Volodymyr Zelenskyj. Several European leaders have spoken with Trump ahead of Monday and are said to have emphasized the importance of a ceasefire and that Putin takes the talks seriously.
"Such peace is not peace"
The US Vice President JD Vance said last week that Russia is making too high demands. But there are also concerns that Trump's benevolent attitude towards Putin and economic interests in Russia are making Ukraine's cause a low priority.
Trump and Witkoff repeatedly emphasize that the war "should never have happened", which is interpreted as that they in some way sympathize with Russia's motives for the large-scale war.
A few weeks ago, the US ambassador to Kyiv resigned in protest of the new government choosing "to put pressure on the victim Ukraine rather than on the perpetrator Russia".
I believe that peace at any price is not peace at all, says the resigned ambassador Bridget Brink now to AP.
It is appeasement policy, and as we have learned from history, appeasement policy only leads to more war.
