Britain said it would donate air defence missiles capable of shooting down cruise missiles to Ukraine in the wake of Russian strikes on Kyiv and other cities in recent days.
British Defence Secretary Ben Wallace announced the new support ahead of a NATO meeting in Brussels on Thursday.
Ukraine’s allies had pledged new air defences and more aid on the sidelines of the meeting on Wednesday.
Britain said the Advanced Medium-Range Air-to-Air Missile, or AMRAAM, which will be provided in the coming weeks, could be used with the National Advanced Surface-to-Air Missile System, or NASAMS air defence systems pledged by the United States.
Hundreds of additional air defence missiles of other types would also be donated, along with more aerial drones and a further 18 howitzer artillery guns, it said.
Wallace said: “Russia’s latest indiscriminate strikes on civilian areas in Ukraine warrant further support to those seeking to defend their nation.