Andy Burnham has pledged to continue the UK’s “unwavering” support for Ukraine ahead of a meeting with President Volodymyr Zelensky on Monday.

Zelensky will become the prime minister’s first international visitor since taking office a week ago, which No 10 said “illustrates the strength of the relationship between the two nations.”

They will visit a naval base, where Burnham will announce that she will share the intellectual property behind the UK’s new “Stone Cloak” electronic warfare system, allowing Ukraine to produce the technology at scale.

The prime minister said: “Britain stands with Ukraine, shoulder to shoulder, and our support remains unwavering. Russia must have no doubts about our resolve and we will not back down until we achieve a just and lasting peace for Ukraine.”

He added: “Stone Cloak is the best of home-grown British innovation and has proven itself on the frontline, and will be vital to protecting our security in both countries.”

Electronic jammers are the size of a tablet and are designed to block detection from any drone they are installed on.

The Ministry of Defense has already delivered thousands of devices to Ukrainian forces to reinforce their drone operations.

Downing Street said that following its deployment in Ukraine, the technology will be incorporated into the UK’s next generation of long-range weapons.

He said this would include Project Brakestop, a government program to develop low-cost cruise missiles: self-propelled guided weapons that fly like normal aircraft for much of their flight.

During Monday’s visit, the two leaders will also meet more than 200 Ukrainian military personnel who have spent the past three weeks participating in a maritime exercise in the United Kingdom.

Exercise Sea Breeze aims to strengthen combat capabilities and anti-mine measures in the Black Sea.