Nerijus Aleksiejūnas, Lithuania's Ambassador to the European Union, has said that his country opposes proposals to resume dialogue between the EU and Russia.

Tammy Bruce, US Deputy Ambassador to the United Nations, has described Russia's use of the Oreshnik intercontinental ballistic missile against Ukraine as an unjustified escalation.

A meeting of the NATO–Ukraine Council initiated by the Ukrainian side took place on Monday 12 January, during which participants discussed Russia's large-scale attacks on energy infrastructure as well as the use of the Oreshnik medium-range intercontinental ballistic missile.

Rheinmetall, one of Germany's largest defence companies, has announced that Ukraine will receive its first Lynx KF41 combat vehicles in early 2026.

Norwegian Foreign Minister Espen Barth Eide arrived in Kyiv on Monday 12 January.

Kremlin leader Vladimir Putin has spoken of the threat of a "large-scale armed conflict" if Russia's Kaliningrad Oblast is blockaded.

Ukrainian President Volodymyr Zelenskyy has commented on the possibility of an accelerated path for Ukraine to join the EU, which reportedly features in the latest draft of a US peace proposal.

David McGuinty, Canada's Minister of National Defence, during the 32nd meeting of the Ukraine Defence Contact Group (the Ramstein format), announced the allocation of an additional 50 million Canadian dollars (over US$36 million) to support the Ukrainian Armed Forces.

Ukrainian Foreign Minister Andrii Sybiha has stressed the importance of the EU taking a decision this week to provide Ukraine with a reparations loan using frozen Russian assets.

Frontline Robotics, a Ukrainian drone manufacturer, and Quantum Systems, a German defence company, are set to launch the production of attack drones in Germany under a contract for Ukraine.

Rustem Umierov, Secretary of the National Security and Defence Council of Ukraine, has held secret meetings with the leadership of the US Federal Bureau of Investigation which, media reports say, have added a new layer of uncertainty to the peace settlement process over the war launched by Russia.

US Defense Secretary Pete Hegseth has removed US Army Secretary Dan Driscoll from peace talks on Ukraine.

President Volodymyr Zelenskyy has planned to visit the German capital on Monday 15 December 2025.

The administration of US President Donald Trump is said to have discussed the idea of forming a new body of major powers, Core 5, which would include China and Russia.

Polish President Karol Nawrocki is said to have not been informed about plans to transfer MiG-29 fighter jets to Ukraine.