Mr Trump said she closely followed royal ceremonies on television.
He described the long-standing partnership between Nigeria and Britain as strategic and valuable.
The president and his wife, Remi Tinubu, landed at the Presidential Wing of the Murtala Muhammed International Airport, Lagos, at 1:15 a.m.
King Charles noted that in 2024, Nigerians spent £178 million in the UK, while 251,000 British visitors travelled to Nigeria.
Nigerian-trained doctors are among the largest groups of international medical professionals serving the NHS.
The state visit is expected to culminate in the signing of agreements and memoranda of understanding across strategic sectors of the economy.
The force promised to deploy officers with specialist capabilities, including search teams Mounted Section, road policing, and armed units, across Windsor.
“Nobody is above the law,” Prime Minister Keir Starmer told the BBC Thursday morning.
The statement indicated that Nigerians in Britain remained steadfast in their support for the administration’s reform agenda.
China and the UK on Friday agreed to develop a long-term and consistent comprehensive strategic partnership between the two countries
