US, Washington: US President Barack Obama will visit to the United Kingdom (UK) and Saudi Arabia next month, a visit set to be dominated by doubts over Britain’s EU membership and concerns about turmoil in the Middle East. The White House said Obama will visit Windsor Castle, where he will have a private lunch with Queen Elizabeth II and 10 Downing Street for a joint press conference with Prime Minister David Cameron.

His visit comes ahead of Britain’s hotly contested June referendum on European Union membership. Obama is likely to express his strong backing for keeping Britain in the EU, but will have to rebuff allegations of interference. London’s loquacious mayor Boris Johnson, a chief proponent of leaving the bloc, has accused Obama of “exorbitant hypocrisy” given America’s “hysterical vigilance” about its own sovereignty. In Saudi Arabia, Obama will attend a summit of the Gulf Cooperation Council, were Washington’s policies toward the Middle East are likely to come under the microscope.