The trip represents a test of the Democratic president's ability to manage and fix relationships with major allies who grew disenchanted with then-President Donald Trump's trade tariffs and withdrawal from global treaties.
"Will the democratic alliances and institutions that shaped so much of the last century prove their capacity against modern-day threats and adversaries?"
US President Joe Biden flies to Europe this week to meet allies ahead of a summit with President Vladimir Putin. "And this week in Europe, we have the chance to prove it", Biden said in an opinion article published in the Washington Post.
The eight-day trip will start Wednesday in the United Kingdom, where Biden will visit American troops stationed there and then meet Prime Minister Boris Johnson, ahead of a G7 summit in Carbis Bay, a seaside resort, on Friday and Saturday. They will also talk about ways to support developing nations and counteract the influence of China.
Biden may face pressure to do more to share USA vaccine supplies with other countries after an initial pledge of 20 million doses announced last week.
Twenty-one murder plots uncovered by Australian police in worldwide operation against gangs
Australian police were among the first to reveal the sting, called Operation Ironside, on Tuesday. It has led to drug trade arrests in Australia, Asia, South America and the Middle East.
Republicans came out against the plan this week, potentially complicating the USA ability to implement a broader global agreement.
Several one-one-one meetings with other world leaders are planned along the way, including with British Prime Minister Boris Johnson and Queen Elizabeth II in England.
That choreography - by far the most intense travel schedule since the 78-year-old took office - is created to send a clear message to Putin: Biden will represent a democratic bloc, not just the United States.
In an interview conducted remotely on Friday with the online Axios news site, Zelenskiy implored Biden to meet with him "at any moment at any spot on the planet" prior to the US president's visit to Geneva, Switzerland. The agenda is expected to be dominated by Russia, China and the perennial issue of getting North Atlantic Treaty Organisation allies to contribute more to the common defense.
However the Biden-Putin meeting goes, it is unlikely to end with the kind of performance Trump put on in 2018 after meeting the Kremlin leader in Helsinki.
Brexit minister admits Northern Ireland protocol having 'damaging impact'
Speaking ahead of the meeting, Lord Frost warned a solution was in the interests of both sides. The EU has threatened legal action over that decision.
U.S. National Security Adviser Jake Sullivan said at a White House briefing that Biden told Zelensky that he "looks forward to welcoming him to the White House here in Washington this summer".
No major breakthroughs are expected from the summit.
"We believe that President Biden is the most effective direct communicator of American values and priorities and we believe that hearing directly from President Putin is the most effective way to understand what Russian Federation intends and plans", Sullivan said.
This time, the idea of a joint Biden-Putin press conference itself is up in the air.
Harris says talks in Guatemala were robust, tells migrants: ‘do not come’
Vice President Harris had what she called "robust" talks with Guatemalan President Alejandro Giammattei . Harris discussed sharing COVID-19 vaccines with Guatemala during the meeting, she said.