Trump will participate in a signing ceremony of "several agreements that will further solidify U.S. -Saudi security and economic cooperation".
Leaders and representatives of 55 countries - from the southeast Asian sultanate of Brunei to Africa's Niger and heavyweights including Turkey - have been invited by King Salman for Sunday's summit with Trump.
President Donald Trump's trip to Israel next week will probably be historic for another reason - it might be the first direct flight from Saudi Arabia to Israel.
Trump is set to meet various heads of states during his trip to Saudi Arabia.
Saudi Arabia, home to some of Islam's holiest sites, will be pulling out all the stops for a man who has declared "Islam hates us" and said the United States is "losing a tremendous amount of money" defending the kingdom.
After Saudi Arabia, Mr Trump flies to Jerusalem, where he will meet Prime Minister Benjamin Netanyahu and visit the Yad Vashem memorial to the Holocaust.
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RIYADH-Saudi Arabia is ready to receive the leaders of more than 56 countries to take part in two summits in Riyadh with US President Donald trump, Okaz local newspaper reported on Wednesday.
"The speech is meant to unite the broader Muslim world against common enemies of all civilization and to demonstrate America's commitment to our Muslim partners", McMaster said.
National security advisor H R McMaster said the speech is likely to be "inspiring yet direct, and "is meant to unite the broader Muslim world against common enemies of all civilization and to demonstrate America's commitment to our Muslim partners". The show will be open to men only, and Keith will perform alongside an Arabian lute player. Furthermore, the Saudis were disappointed that the U.S. did not take action against President of Syria Bashar al-Assad and viewed Obama as taking the side of the Islamic Republic.
Miller reportedly wrote Trump's inauguration speech, though Trump has claimed that he wrote it himself.
Those around him will be hoping he doesn't create a new one while he's away.