Britain will send helicopters to Ukraine for the first time since the Russian invasion, the Ministry of Defense said in London on Wednesday.

Ten crews of Ukrainian service personnel and engineers completed a six-week training program in the UK as part of the “first helicopter capacity donated by the UK to Ukraine,” the ministry said.

In addition to the three ex-British Sea King military helicopters, the first of which has already arrived, the UK will also supply a further 10,000 artillery shells.

“Our support for Ukraine is unwavering. These additional artillery shells will help Ukraine secure the country it has reclaimed from Russia in recent weeks,” Defense Secretary Ben Wallace said.

British Prime Minister Rishi Sunak used a weekend visit to the Ukrainian capital to unveil a new £50 million ($59 million) defense aid package, which included 125 anti-aircraft guns and equipment to counter Iran-supplied drones.

The UK is also supplying cold-weather winter gear to the Ukrainian Armed Forces.

Ukrainian troops face falling temperatures as they battle through the winter to push Russian forces out of occupied Ukrainian territory.

The announcement came as Wallace was visiting Norway for a meeting of the Northern Group of Defense Ministers aboard the British aircraft carrier HMS Queen Elizabeth.

The 12-strong Northern Group is a British initiative to promote defense and security cooperation in Northern Europe.

Other members are Denmark, Estonia, Finland, Germany, Iceland, Latvia, Lithuania, the Netherlands, Norway, Poland and Sweden.

Former Prime Minister Boris Johnson was a staunch ally of Ukraine, visiting Kyiv three times and channeling military equipment, finance and training resources into the country.