Barack and Michelle Obama Celebrate Queen Elizabeth II's Birthday With a Lunch at Windsor Castle

President Barack Obama and First Lady Michelle Obama touched down in the UK on Friday, where they were greeted by Queen Elizabeth II and Prince Philip. The Obamas posed with the royal couple inside of the Oak Room at Windsor Castle and attended a private lunch hosted by the queen later that day. In addition to probably wishing the queen a very happy 90th birthday, Barack is in town for a press conference with British Prime Minister David Cameron regarding the UK's place in the European Union and is also expected to have dinner with the Duke and Duchess of Cambridge at Kensington Palace. Keep reading to see more photos of their time with the queen, and check out Barack's recent trip with daughter Malia!