WASHINGTON (AP) — President Barack Obama will travel to Saudi Arabia and Britain next month ahead of his long-planned trip to Germany.

The White House says Obama will head to Saudi Arabia on April 21 for a summit of the Gulf Cooperation Council. Obama last year hosted leaders from the group of Persian Gulf nations. They'll discuss the fight against the Islamic State group and other Mideast security concerns.

Obama also will visit London, where he'll have lunch with Queen Elizabeth II and meet with Prime Minister David Cameron. Obama has encouraged the United Kingdom to remain in the European Union ahead of a June 23 referendum.

The White House says Obama will attend the trade show Hannover Messe in Germany and meet with Chancellor Angela Merkel.