Russia-Ukraine war at a glance: what we know on day 405 of the invasion

Finland will become the 31st member of the world’s biggest military alliance on Tuesday, the Nato secretary general, Jens Stoltenberg, has said. Stoltenberg said Turkey, the last country to ratify Finland’s membership, would hand its official texts to the US secretary of state, Antony Blinken, on Tuesday. Stoltenberg said he would then invite Finland to do the same.

Stoltenberg’s announcement prompted a warning from Russia that it would bolster its defences near their joint border if Nato deployed any troops inside the country. “We will strengthen our military potential in the west and in the north-west,” Grushko said in remarks carried by the RIA Novosti state news agency.

Ukraine has said Russian forces are “very far” from capturing the eastern town of Bakhmut and that fighting raged around the city administration building where the Wagner mercenary group claims to have raised the Russian flag. Six civilians were killed and eight wounded in Russian shelling of Kostiantynivka near Bakhmut, a senior Ukrainian official said.

Former US secretary of state Mike Pompeo visited Ukraine on Monday and said he would work towards Washington supplying F-16 fighter jets and long-range missiles for the country’s war against Russia. Asked whether he would back providing Ukraine with F-16 fighter jets and long-range missiles Pompeo said: “Yes. And the training and the software and all the things needed to actually protect and defend your own land.”

Pompeo’s visit coincides with discussion in the United States around how much further support should be given to Ukraine. Washington has already provided $30bn in military aid since the beginning of what Moscow calls its “special military operation”.

Russian police have arrested a woman suspected of delivering a bomb that killed a prominent pro-war Russian military blogger in a blast in a cafe in central St Petersburg on Sunday. Vladlen Tatarsky, whose real name was Maxim Fomin, was killed by a bomb blast as he hosted a discussion with other pro-war commentators at a cafe on the banks of the Neva River in the historic heart of the city. Police said they had identified a woman called Darya Trepova as the suspect and that she was arrested in a flat in St Petersburg after a search on Monday morning.

The West is trying to put a wedge between Russia and China’s friendship, Russian foreign minister Sergei Lavrov said in an interview. Lavrov also said that the EU had “lost’ Russia and that Moscow may get tough with Europe if need be.

Russia’s commissioner for children’s rights, who is wanted by the international criminal court on war crimes charges arising in Ukraine, is likely to brief an informal meeting of the UN security council, according to a note seen by Reuters.

Zelenskiy has paid tribute to the courage of nearly 400 villagers in north Ukraine who were held in a school basement under Russian occupation for 27 days before they were set free a year ago. The Ukrainian leader travelled to Yahidne on Monday, where he gave a speech recalling how villagers were kept captive in a space of less than 200 sq metres during the first month of Russia’s February 2022 invasion.

Zelenskiy is scheduled to visit Poland on Wednesday for talks with his Polish counterpart, Andrzej Duda. Zelenskiy will be accompanied by his wife, Olena Zelenska, during his first official visit to Warsaw since Russia’s invasion 13 months ago. Zelenskiy is also expected to hold talks with Poland’s prime minister, Mateusz Morawiecki.

Poland has already delivered the first batch of Soviet-era MiG-29 fighter jets to Ukraine, according to the Polish presidential office’s head of international policy, Marcin Przydacz. He did not specify how many jets had been transferred. Poland’s president, Andrzej Duda, last month said Warsaw would hand over the first four MiG-29 to Ukraine.

Evan Gershkovich, the US journalist arrested on espionage charges in Russia last week, has appealed against his detention through his lawyers, according to a report. The Nato secretary general, Jens Stoltenberg, said Gershkovich’s arrest was “of concern” and called for his “immediate release”. The US government is “pushing hard” for the release of Evan Gershkovich, the White House said on Monday.