US President Donald Trump has toughened his rhetoric on Moscow, for the first time calling Russia the aggressor in its war against Ukraine.

The German government has approved roughly €10 billion less in aid to Ukraine for 2026-2027 than the Federal Defence Ministry initially requested, German tabloid Bild has reported, citing an internal document from the ministry.

A bipartisan group of US senators has introduced a bill to label Russia and Belarus state sponsors of terrorism due to the abduction of Ukrainian children.

Russia’s oil revenues and war machine have been hit by a new UK sanctions package on 12 September, as UK Foreign Secretary Yvette Cooper arrived in Kyiv.

Radosław Sikorski, Deputy PM and Minister of Foreign Affairs of Poland, arrived in Ukraine on 12 September.

Ukrainian President Volodymyr Zelenskyy has met with his Finnish counterpart Alexander Stubb in Kyiv, where they discussed the Russian drone attack on Poland, the need to step up pressure on Russia and support for Ukraine on its path to the EU.

Latvian authorities have ordered a temporary closure of airspace along the borders with Russia and Belarus, set to last seven days.

Finnish President Alexander Stubb and his Ukrainian counterpart Volodymyr Zelenskyy have honoured the memory of fallen Ukrainian defenders in Kyiv.

The foreign ministers of Ukraine, Poland and Lithuania, part of the Lublin Triangle format, issued a joint statement following the violation of Polish airspace by Russian drones on the night of 9-10 September.

Finnish President Alexander Stubb has arrived in Ukraine for an official visit on 11 September.

The Polish Air Navigation Services Agency (PAŻP) has announced that from 10 September to 9 December, air traffic will be restricted in eastern Poland along the border with Ukraine and Belarus for reasons of national security.

NATO Secretary General Mark Rutte has assessed the actions of NATO allies in response to the Russian drone attack on Poland as "successful" in ensuring the protection of the Alliance member state.

NATO Secretary General Mark Rutte has said that a full assessment of the incident involving Russian drones in Poland is still ongoing, and therefore he would not comment on whether it was a deliberate attack or a mistake.

Ukraine has received another €1 billion tranche of macro-financial assistance from the European Union under the G7's Extraordinary Revenue Acceleration (ERA) initiative.

Ukraine's President Volodymyr Zelenskyy has said up to 20 Russian drones may have crossed into Polish airspace, citing a new report from the commander of Ukraine's Air Force.