July 27 (UPI) — New British Prime Minister Andy Burnham hosted Ukrainian President Volodymyr Zelensky on Monday at a Royal Navy base training Ukrainian forces.

Zelensky’s visit was the first of any foreign leader since Burnham took over as prime minister. Burnham said the visit was meant to “send a very clear message” about the United Kingdom’s support of Ukraine.

“To put it simply, Volodymyr, I want you to know that we’ve got your back, that you can count on me and you can count on us,” Burnham said, BBC News reported. “You can count on the UK for as long as it takes.”

Zelensky said Ukraine’s relationship with the UK is “stronger than ever.”

Burnham also announced a deal permitting Ukraine to mass-manufacture Stone Cloak electronic warfare technology, which is fitted to drones to make them invisible to air defense radar.

Downing Street said that after Ukraine begins using Stone Cloak, it will be incorporated into Britain’s next generation of long-range weapons, including from Project Brakestop, which is developing low-cost cruise missiles.

Burnham said Stone Cloak was “the best of homegrown British innovation and proven on the frontline, and it will be vital to protecting our security in both our countries.”

Burnham and Zelensky were also to meet with more than 200 Ukrainian service members taking part in Exercise Sea Breeze, a maritime training deployment involving Ukraine and 14 other countries aimed at boosting warfighting capabilities and tactics to deal with mines in the Black Sea.

Ahead of the visit, Burnham said the fact Zelensky was his first international visitor “illustrates the strength of the relationship between the two nations,” vowing to emulate the personal commitment to Zelensky shown by his predecessor, Keir Starmer.

“My support for Ukraine is unwavering — it is 100%. And I will do what, in Ukraine, people think is the right thing that they need,” said Burnham.

“Britain stands with Ukraine, shoulder to shoulder, and our support remains unwavering. Russia should be in no doubt of our resolve, and we will not back down until we achieve a long-lasting and just peace for Ukraine,” he added.

In a post on X, Zelensky thanked Britain, saying that Ukraine valued that it could “always count on Britain’s principled decisions, leadership, and support.”

Total British support to Ukraine since Russia’s full-scale invasion in February 2022 is $33.3 billion, $21.3 billion of it military assistance, figures put out by Downing Street show, with bipartisan consensus across the previous administrations of Boris Johnson, Liz Truss, Rishi Sunak and Keir Starmer.

Starmer’s final act as prime minister was to visit with Zelensky in Kyiv on July 17, his last official day as leader of the Labour Party.