Prime Minister Andy Burnham is preparing for his first face-to-face talks with US President Donald Trump as he seeks American help to strengthen Ukraine's air defences ahead of winter.
Burnham is expected to travel to New York in September for the United Nations General Assembly, where British officials are preparing for potential leader-level talks with Trump.
The Prime Minister intends to use the visit to press the United States over access to stocks of Patriot air-defence interceptor missiles following his talks with Ukrainian President Volodymyr Zelenskyy in Kyiv.
Burnham takes Zelenskyy's appeal to Washington
Ukraine has repeatedly sought additional Patriot interceptors as Russia continues ballistic missile and drone attacks against Ukrainian cities and infrastructure.
Speaking after his Kyiv visit, Burnham said he believed the shortage of air-defence interceptors was a problem that could be solved and indicated that other European leaders would join efforts to persuade the United States to help.
The Guardian reported that Burnham intends to raise Ukraine's request directly with Trump during his planned US visit.
No agreement has yet been announced for the United States to release additional Patriot interceptor stocks as a result of Burnham's intervention.
First face-to-face talks with Trump
The Financial Times reported that Burnham is set to hold his first face-to-face meeting with Trump in September.
British officials are considering arrangements around Burnham's trip to the UN General Assembly in New York, with options reportedly including a possible visit to the White House.
However, the detailed arrangements have not been publicly finalised.
Burnham has said the precise details of his US trip are not yet fully confirmed, making it important to distinguish preparations for the meeting from a final published itinerary.
Patriot interceptors central to Ukraine's air defence
The US-made Patriot system is one of Ukraine's most important defences against ballistic missiles.
Kyiv has warned that supplies of interceptor missiles remain insufficient as Russia maintains pressure on Ukrainian cities and critical infrastructure.
Burnham's intervention follows his first overseas visit as Prime Minister, during which he met Zelenskyy and chaired a meeting of the Coalition of the Willing.
The UK and its allies have also pledged to strengthen Ukrainian air defence and increase military assistance.
UK expands support for Ukrainian missile production
Burnham's push for Patriot interceptors comes alongside a separate agreement intended to help Ukraine develop its own long-range strike capabilities.
During the Kyiv visit, Britain announced that MBDA would be permitted to share technical information to support Ukrainian production of Storm Shadow and SCALP-type long-range missiles.
The Government has also reaffirmed preparations for a multinational force that could deploy to Ukraine following a credible cessation of hostilities.
Those measures are separate from the Patriot request, which depends heavily on decisions taken by the United States.
First US visit of Burnham premiership
The September trip is expected to be Burnham's first visit to the United States since becoming Prime Minister.
Although Ukraine is expected to feature prominently, the Financial Times reported that potential talks with Trump could extend to areas including trade, energy and defence cooperation.
The meeting would therefore provide an early test of the relationship between the new British Prime Minister and the US President.
Meeting preparations continue
For now, the confirmed political development is Burnham's intention to travel to the United States and press for greater support for Ukraine's air defence, alongside preparations for his first direct meeting with Trump.
The exact location and format of the talks remain subject to final arrangements, and there has been no announcement that Trump has agreed to provide the additional Patriot interceptors Ukraine is seeking.
Burnham will therefore arrive in the United States carrying one of Zelenskyy's most urgent military requests, but its outcome will ultimately depend on decisions in Washington.