British Prime Minister Rishi Sunak used a weekend visit to the Ukrainian capital to set out a new £50 million (US$59 million) package of defence aid which included 125 anti-aircraft guns and equipment to counter Iranian-supplied drones.
Britain is also supplying cold-weather winter kit to the Ukrainian armed forces.
Ukrainian troops face plummeting temperatures as they battle through the winter to eject Russian forces from occupied Ukrainian territory.
The announcement came as Wallace visited Norway for a meeting of the Northern Group of defence ministers onboard the UK’s aircraft carrier HMS Queen Elizabeth.
The 12-strong Northern Group is a UK initiative aimed at promoting defence and security cooperation in northern Europe.
Other members are Denmark, Estonia, Finland, Germany, Iceland, Latvia, Lithuania, the Netherlands, Norway, Poland and Sweden.
Former premier Boris Johnson was a staunch ally of Ukraine, visiting Kyiv three times and funnelling military hardware, funding and training resources to the country.