Kyiv (Ukraine) (AFP) - The United States and Britain have not authorised Kyiv to use long-range missiles on targets inside Russia, fearing escalation, President Volodymyr Zelensky said, hinting he hoped to convince Joe Biden to change his mind in an upcoming trip to Washington.

Zelensky was speaking late on Friday ahead of a crucial visit next week, during which he is due to discuss proposals for ending the fighting with Biden, Vice President Kamala Harris and ex-leader Donald Trump.

Kyiv has for weeks been pressing the West to allow it to use Western-supplied long-range weapons to strike targets inside Russia, arguing it could change the course of the war, two and a half years after Moscow’s invasion of its neighbour.

“Neither America nor the United Kingdom gave us permission to use these weapons on the territory of Russia, on any targets, at any distance,” Zelensky told reporters.

“I think they are worried about an escalation.”

Russian President Vladimir Putin has warned that if Ukraine uses long-range weapons supplied to it by the West to strike targets inside Russian territory, that would signify NATO countries were also at war with Russia.

But Zelensky hinted he had not given up hope that Biden – who has four months left in office – could make a U-turn in time for a “historic mission” to make “important decisions for Ukraine”.

“We have had some decisions in the history of our relationship with Biden – very interesting and difficult dialogues,” the Ukrainian leader said.

“He later changed his point of view.”

A close adviser to Biden said this month he would use his remaining time in office to “put Ukraine in the best possible position to prevail”.

- November summit -

Zelensky will travel to the United States after a summer of intense fighting.

Moscow’s forces have been advancing in eastern Ukraine while Kyiv has held onto swathes of Russia’s Kursk region for weeks.

The Russian army is now around 10 kilometres (six miles) away from the eastern Ukrainian hub of Pokrovsk, to where Kyiv has rushed people evacuated from frontline areas.

The war has dragged on for almost 31 months and efforts to end fighting have so far proved unsuccessful.

Zelensky repeated that Ukraine was “ready” to invite Russia to a second international peace summit in November “because all our allies, including our closest ones” said Russia should be there.

“It is Russia who is fighting Ukraine. There can be no end of the war without one of the parties,” he said.

Zelensky said the November summit would be “the foundation for talking in any format with Russia”.

But Russia said on Saturday it will not take part in such a summit and repeated Putin’s conditions that Moscow will only come to the table if Kyiv surrenders four of its regions.

- Kamala, Trump meeting -

Zelensky said he was taking into account that “we will have a very different situation in November” after the US election.

He planned to meet Harris to “see what she thinks about the victory plan” and “definitely” encounter Trump.

Harris and Trump are rival candidates in the knife-edge US presidential election.

Zelensky is expected to meet Trump on September 25 or 26. Kyiv is concerned that if he wins a second term Washington could weaken its commitment to Ukraine.

Harris has indicated that she will continue Biden’s policies of backing Ukraine, while Trump refused in a recent election debate to take sides over the war.

Trump has been highly critical of the billions of dollars Washington has provided to Kyiv in aid, and refused to pick a side in a recent debate.

Zelensky also dismissed peace proposals put forward earlier this year by China and Brazil – both of whom have friendly ties to Russia – as too nebulous.

“I don’t think it was a concrete plan. I don’t see any specific action or stages in it, just generalised procedures,” he said.

“Generalisations always hide something.”

Beijing and Moscow have close ties which have strengthened since the Russian invasion of Ukraine.