Ukrainian President Volodymyr Zelenskyy was greeted by Polish President Nawrocki outside the presidential palace in Warsaw on Friday morning.
Poland has been a major supporter of Ukraine since Russia launched its full-scale invasion in February 2022.
However, rising antagonism toward Ukrainian refugees has sparked a shift among some right-wing voters who make up Nawrocki's base.
In western cities like Lviv, far from Ukraine's frontlines, resentment toward TCK mobilization units seems to be growing.
Officers say the work is deeply unpopular and psychologically crushing, but insist they have no alternative as the frontline remains in urgent need of soldiers.
Some residents nevertheless tell DW that mobilisation is essential, while social media videos of violent detentions have fuelled public anger and prompted authorities to open hundreds of investigations into alleged abuse of power.
To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
The Ukrainian president is set to hold talks with the two top figures of Polish politics.
Prime Minister Donald Tusk is a pro-European centrist who has been a firm supporter of Ukraine.
However, President Karol Nawrocki is a Trump-backed right-winger who is expected to be more responsive to growing anti-Ukrainian sentiments amid some right-wing voters.
"We should support Ukraine, and we do," Nawrocki said in an interview with the wp.pl news website published on Monday.
"At the same time, we should... ensure that Ukraine treats Poland as a partner. The conflict has been going on for nearly four years, and I have the impression that we, Poles, often don't feel like partners in this relationship."
Nawrocki marks a cooling of Polish-Ukrainian relations even though his right-wing predecessor was supportive of Kyiv thanks in part to their joint antagonism toward Russia.
Ahead of his trip to Warsaw, Zelenskyy said relations with Poland were "very important," as he seeks to shore up support from key allies as the Trump administration continues to be an unreliable partner for Ukraine.
The Russian president kicked off his annual conference where he fields questions from journalists and citizens by saying that Russia was "ready and willing" to end the conflict, but he said he did not believe Ukraine was ready for peace talks.
"So far, we don't really see such readiness [from Ukraine for peace talks]... But still we see ... certain signals, including from the Kyiv regime, that they are ready to engage in some kind of dialogue," Putin said.
Russia has repeatedly pushed for the annexation of Ukrainian land as a prerequisite for peace talks.
He also said, without providing evidence, that: "Our troops are advancing along the entire line of contact... the enemy is retreating in all directions."
Russia has previously claimed advances that have been denied, at least partially, by Ukraine, such as the taking of the town of Pokrovsk.
On the first day of the EU summit in Brussels, the 27-member bloc reached an agreement to fund a €90 billion ($105 billion) loan to finance Ukraine for the next two years.
European Commission President Ursula von der Leyen and German Chancellor Friedrich Merz had called for the loan to be funded by frozen Russian assets held in the EU.
However, Belgium, where the vast majority of assets are being held, opposed the plan, fearing retaliation from Russia.
The US' Trump administration had also opposed the plan, with reports that it had been putting pressure on EU leaders.
The second option, to fund the loan from the EU budget, had been opposed by Hungary, which is the EU member with the closest ties to Russia. But Hungarian Prime Minister Viktor Orban agreed to withdraw his opposition while also not contributing to the loan.
Slovakia and the Czech Republic have also opted out.
Ukrainian President Zelenskyy thanked the EU for agreeing to fund his country and said the important thing was that the Russian assets remain frozen.
However, Russia also appeared pleased with the result, with Russian special Envoy for investment and economic cooperation, Kirill Dmitriev, calling it a "major blow" for von der Leyen.
Welcome to our updates as we bring you the latest from the Russian full-scale invasion of Ukraine.
On Friday, we are awaiting a meeting between Ukrainian President Volodymyr Zelenskyy, the Polish Prime Minister Donald Tusk and Polish President Karol Nawrocki in Warsaw.
Russian President Vladimir Putin will also be holding his annual marathon news conference.
Follow along to find out what he says about the ongoing war and all the other top stories.
