Boris Johnson and Donald Trump have discussed trade and security issues as they prepare for their first face-to-face talks since Britain’s new prime minister took office.
The leaders held a phone call on Thursday and also talked about 5G mobile networks, the White House confirmed.
A spokesman said: “President Donald J Trump spoke with Prime Minister Boris Johnson yesterday to discuss areas of further co-operation, especially relating to trade, 5G and global security.
“The president reiterated his strong appreciation for the special relationship between the United States and United Kingdom and noted he is looking forward to meeting with the prime minister at the G7 summit in Biarritz, France, later this month.”
Downing Street has declined to release details of the conversation.
It is the second call they have held since Mr Johnson won the keys to 10 Downing Street, beating rival Jeremy Hunt in the Tory leadership race to replace Theresa May.
Mr Trump phoned Mr Johnson two days after the victory and declared work had already begun on a UK-US free trade deal.
“I congratulated him and he’s all set to go,” the US president told reporters at the time, adding that both sides were working on a “very substantial trade agreement”.
The pair have so far had a positive relationship, with Mr Trump saying Mr Johnson is known in the UK as “Britain Trump”.
But their relationship has not always been so cordial.
Back in 2015 the then-mayor of London hit out at remarks by Mr Trump who suggested there were no-go areas of the capital, commenting that he “wouldn’t want to expose Londoners to any unnecessary risk of meeting Donald Trump”.
Mr Johnson also criticised the president during his campaign for the Tory leadership over his “go back” remarks to four congresswoman of colour, although he stopped short of calling them racist.
Woody Johnson, the US ambassador to the UK, has predicted the pair will have a “sensational” relationship.
He said last month that he thought it unlikely that Mr Trump would hold a grudge over the PM’s past criticism of him.
The relationship with Mr Trump will be one that Mr Johnson will be keen to foster while in office, given the long-standing ties between London and Washington and the prospect of a post-Brexit free trade deal.
One area of tension could be over 5G.
Under Mrs May, the UK government postponed a decision on whether Huawei should play a role in the infrastructure for the next generation of mobile technology.
The US president effectively banned the Chinese company from trading with US companies without approval in May because of concerns about the security of its 5G equipment and alleged links to the Chinese government.