Ukraine's European allies have pledged €21bn (£18.2bn) in a new tranche of military support for Kyiv in what they described as "a critical year" for the war.
Members of the Ukraine Defence Contact Group met at Nato's headquarters in Brussels to pledge air defences, missiles and other gear as Europe sought to fill the gap left by the changed priorities of the US under Donald Trump.
Boris Pistorius, the German defence secretary, said Berlin would send €11bn in aid over four years. John Healey, his British counterpart, said the pledges would send a strong signal to Moscow.
Europe's defence ministers said they saw no sign of an end to the war, despite Trump's promise of a ceasefire.
Support announced on Friday also includes a £450m package from the UK and Norway to fund radar systems, anti-tank mines, vehicle repairs and hundreds of thousands of drones for Ukraine.
In January, the UK pledged £4.5bn in military aid to Ukraine - which Healey described as the highest contribution of aid to Ukraine this year. The £450m announced on Friday is part of that original figure.
Air defence was a priority at the meeting. Healey said Russian forces had dropped 10,000 glide bombs on Ukraine in the first three months of this year, as well as launching 100 one-way attack drones a day.
At this stage in the war, battlefield casualties on both sides inflicted by drones "way outnumber those inflicted by artillery", the UK defence secretary said.
"In our calculations, 70% to 80% of battlefield casualties are now caused and inflicted by drones," he added.
Defence ministers from 50 nations gathered in Brussels for the 27th gathering of the UDCG.
US Defence Secretary Pete Hegseth joined the meeting remotely, telling allies that America appreciated all the work "you guys" are doing.
Pistorius said it Hegseth's decision was a matter of "schedules" rather than "priorities", and that the "most important fact was that he took part".
Other leaders also joined the meeting remotely, including Ukrainian President Volodymyr Zelensky.
Kyiv's defence minister Rustem Umerov, who was in Brussels, thanked Europe for "taking over the lead on security assistance" for his country.
He also acknowledged that Hegseth's attendance "means that the US is continuing its security assistance and is beside us".
The three European defence ministers - Healey, Pistorius and Umerov - all accused Russia of dragging its feet over a ceasefire, with the UK's Healey pointing out it had been more than a month since Russia rejected a US-backed peace settlement.
Pistorius noted that Russia was still not interested in peace.
Talks in Europe took place as US envoy Steve Witkoff travelled to Russia, once more, to press the Kremlin to accept a truce.
Kremlin spokesman Dmitry Peskov said Putin and Witkoff would discuss the Ukraine war, but one should not expect any "breakthroughs".
On the ground in Ukraine, Russia's defence ministry said on Thursday that its forces had captured the village of Zhuravka, in Ukraine's northern border region of Sumy.
Ukrainian officials are yet to confirm this.
Earlier this week, President Zelensky said as many as 67,000 Russian soldiers were positioned north of the border of the Sumy region, in preparation for an attack on the city of Sumy.