The European Union will provide €160 million to help Ukraine prepare for another winter amid Russian attacks on the country's energy system.

The film Russians at War by Russian director Anastasia Trofimova, which caused widespread protests in Ukrainian society, is to be shown at the Zurich Film Festival. This decision was condemned by the Ministry of Foreign Affairs of Ukraine.

Romanian President Klaus Iohannis has appealed to parliament to approve the establishment of a training centre in the country for training Ukrainian marines.

The European Union plans to increase electricity export capacity to Ukraine and provide equipment to support the battered Ukrainian energy system during the cold season.

The European Union believes that Ukraine, with its energy system battered by attacks, faces a difficult winter, but the situation will not be catastrophic.

Angel Tîlvăr, Minister of Defence of Romania, has stated that a "decisive" response of NATO is needed since the countries of the "Bucharest Nine" (B9) "are deeply concerned" with numerous flights of Russian drones and missiles into the airspace of the Alliance.

Donald Trump Jr, US presidential candidate Donald Trump’s son and key campaign adviser, and Robert Kennedy Jr, former presidential candidate who joined the Trump campaign, have said that the US and Russia have to negotiate in order to put an end to the war in Ukraine.

Germany plans to provide an additional €100 million in aid to Ukraine this winter.

The United States has detained Russian Denis Postovoy on charges of violating export restrictions, money laundering and the illegal supply of dual-use and military microelectronics to Russia. 

Dutch Defence Minister Ruben Brekelmans believes that the Russo-Ukrainian war will not end in 2024 or 2025, and therefore it is necessary to consider the long term and not create false expectations.

The Toronto International Film Festival (TIFF) has set a new screening date for the controversial film Russians at War by a Russian director after cancelling the first screenings amid a barrage of criticism.

The Latvian Defence Ministry will provide Ukraine with CVR(T) tracked combat reconnaissance armoured vehicles which Latvia had previously purchased from the UK.

Polish Foreign Minister Radosław Sikorski has said that the West should not take Russian threats regarding nuclear weapons seriously when considering the decision to lift restrictions on Ukraine's use of Western-supplied weapons. 

Colonel Ants Kiviselg, Head of the Estonian Defence Forces (EDF) Intelligence Center, has reported that over the past week Russia has the Ukrainian positions in Donetsk Oblast on the defensive despite having transferred a part of its troops to Kursk Oblast.

At a briefing on Friday, 13 September, EU foreign policy spokesperson Peter Stano stated that Kremlin leader Vladimir Putin’s threats to consider NATO and European countries as participants in the war.

On behalf of the European Union, Josep Borrell, EU High Representative for Foreign Affairs and Security Policy, has condemned the delivery of Iranian-made ballistic missiles to Russia and announced new sanctions against those involved.

A number of European Union countries are concerned about the decision by Kristalina Georgieva, Head of the International Monetary Fund (IMF) to plan to engage with Russia for the first time since its full-scale invasion of Ukraine.

Republican vice-presidential nominee JD Vance has outlined the Trump administration's prospective plan to settle the war in Ukraine, which includes establishing a "demilitarised zone" on Ukrainian territory and denying Ukraine NATO membership.

Russia has revoked the accreditation of six staff members of the UK Embassy in Moscow, accusing them of conducting intelligence and subversion. 

Polish Foreign Minister Radosław Sikorski visited Lviv on Thursday, 12 September. During this visit, he again called on Ukraine's Western partners to speed up the flow of military aid.

On 11 September, four Russian military aircraft were spotted in the airspace over the Baltic Sea near the Latvian border without a flight plan or operational transponders, prompting NATO to scramble patrol aircraft.

Josep Borrell, EU High Representative for Foreign Affairs and Security Policy, has submitted a proposal to member states to impose sanctions on Iran over its supply of ballistic missiles to Russia.

Bloomberg reports that the decision to ease Western restrictions on long-range strikes against targets on Russian territory is unlikely to be made before the meeting of world leaders at the UN General Assembly in the United States on 24 September.

The White House has been finalising a plan to ease restrictions on Ukraine's use of US-provided weapons for strikes on Russian territory.

Oleh Nikolenko, Consul General of Ukraine in Toronto, has expressed his outrage over the decision by Toronto International Film Festival (TIFF) to proceed with the screening of the film Russians at War despite widespread criticism, urging the organisers to reconsider it.

The European Commission is working to boost the maximum amount of electricity supplied to Ukraine before winter arrives.

Ukraine and Lithuania signed a memorandum of cooperation in the defence sector on Wednesday.

The share of Russian gas in the European Union’s imports has sharply decreased since the beginning of Russia's war against Ukraine, and the EU is prepared to fully eliminate supplies from Moscow.