Kerry touched down at the King Khalid Military City near the town of Hafr al-Batin in the desert, south of the Iraqi and Kuwaiti border. He is later in the evening to have an audience with King Salman, followed by talks and a working dinner with Crown Prince Mohammed Bin Nayef and Foreign Minister Adel al-Jubeir.
His visit came as the kings of Bahrain and Jordan joined Pakistan's prime minister, Abu Dhabi's crown prince, Qatar's emir and the Saudi king for a parade and airshow marking the end of the military exercise, dubbed "Northern Thunder." The drill focused on how to coordinate combat operations and guerrilla warfare tactics among the Muslim-majority countries that are members of a larger counter-terrorism alliance announced by the kingdom in December.
The drills included troops from Egypt, Pakistan, Turkey, Malaysia, Jordan, Sudan and the six-nation Gulf Cooperation Council. Other countries that contributed include Chad, Comoros, Djibouti, Maldives, Mauritania, Morocco, Senegal, and Tunisia.
Kerry's talks are expected to focus on the civil wars in Syria and Yemen, where a Saudi-led campaign has been targeting the country's Iran-backed Shiite rebels.
Kerry is also expected to discuss the migrant crisis facing Europe.