Ukraine's ambassador to Japan Sergiy Korsunsky walks past a map showing Russia and Ukraine as he arrives at his news conference venue in Tokyo, Japan, January 26, 2022. REUTERS/Kim Kyung-Hoon

In a joint statement, the three countries said the memorandum would demonstrate the commitment to “further strengthening the strategic cooperation and engagement between our three nations on the highest priority issues in support of Ukraine.”

It underlined that Ukraine, Poland, and the UK would intensify their joint work “to safeguard stability and build resilience in Ukraine, strengthening democracy at the frontier in Eastern Europe.”

Emphasizing the determination to work together to advance cooperation between the three countries, it said that this cooperation would focus on cyber security, energy security, and boosting strategic communications to counter disinformation in addition to coordinating support to the International Crimea Platform.

“As Poland, the United Kingdom and Ukraine enjoy deep historical ties, built on shared values, a shared commitment to peace and security and a shared history of standing together against aggressors who threaten freedom in Europe,” it said.

The statement went on to say: “We reiterate that each European State is free to choose or change its security arrangements, including treaties of alliance, and no State can consider any part of Europe as its sphere of influence.”

“Poland and the UK will continue to provide Ukraine with support, standing in unity with Ukraine, in the face of ongoing Russian aggression, and fully committed to stand with Ukrainian nation in its efforts aimed at defending Ukraine’s sovereignty, independence and territorial integrity within its internationally recognized borders,” it added.