Dmitry Peskov, spokesperson for Russian ruler Vladimir Putin, has described Estonia's plans to host NATO aircraft capable of carrying nuclear weapons as dangerous.

Polish Foreign Minister Radosław Sikorski has suggested that the Kremlin leader Vladimir Putin’s regime could collapse if a new Cold War-style arms race unfolds.

US President Donald Trump has said he will look into the possibility of providing additional Patriot air defence systems to Ukraine.

Lieutenant General Alexus Grynkewich, nominated by the United States to command NATO forces in Europe, believes Ukraine can win its war against Russia.

The Polish Armed Forces Operational Command has reported that British fighter jets intercepted a Russian Il-20 reconnaissance aircraft that violated the airspace over the Baltic Sea on the morning of 13 June.

Hungarian Prime Minister Viktor Orbán has once again raised the topic of Ukraine during his regular Friday interview on pro-government radio, using the occasion to offer some advice to President Volodymyr Zelenskyy.

Two German Eurofighter jets were scrambled on Thursday 5 June due to the presence of a Russian reconnaissance aircraft over the Baltic Sea.

Moldovan Prime Minister Dorin Recean has stated that Russia seeks to deploy 10,000 troops in the separatist Transnistria region of Moldova and to establish a pro-Kremlin government in Chișinău.

The North Atlantic Alliance is urging European member states to significantly increase their number of ground-based air defence systems in order to prepare for potential Russian aggression.

The so-called "memorandum" containing proposals for a ceasefire and an end to the war, which Russia handed over to Ukraine on 2 June, also contains ultimatums regarding the recognition of the Russian occupation of Ukrainian territories.

Vladimir Medinsky, the head of the Russian delegation at the talks in Istanbul, has said that Russia is offering Kyiv a temporary ceasefire on certain fronts.

The negotiations between the Ukrainian and Russian delegations, which took place on Monday 2 June in Istanbul, have concluded.

Ukrainian Foreign Minister Andrii Sybiha has called for a strong response to a statement by Russia’s UN Ambassador Vasily Nebenzya, who has declared that Moscow intends to fight "as long as necessary".

A Prague court has handed a suspended sentence to teacher Martina Bednářová for denying Russian war crimes in Ukraine.

The Ministry of Defence of the Netherlands has announced the delivery of the last batch of 24 F-16 fighter jets to Ukraine.