Saudi Arabia's King Salman and Russian President Vladimir Putin pose for a photo during a welcoming ceremony at the Kremlin in October 2017. Last year, Saudi Arabia and Russia were the world's second- and third-largest oil producers, respectively.
Young people take a photo in front of the Akhmad Kadyrov Mosque, known as the "Heart of Chechnya," and large letters reading "I love Grozny" in central Grozny, Russia, in 2017.
Kirill Kudryavtsev /AFP/Getty Images
Vladimir Baranov is still hoping to find passengers for the Man Gyong Bong ferry between Vladivostok and the North Korean port of Rajin, including Russian and Chinese tourists. But he can soon forget about the region's North Korean migrant workers that Moscow says will have to leave.
Yuri Smityuk/TASS via Getty Images
Syrian authorities distribute bread, vegetables and pasta to residents on Monday in the town of Douma, the site of a suspected chemical weapons attack, near Damascus, Syria.
Buses with U.S. diplomats and their families who have been expelled from Russia leave the U.S. Embassy compound in Moscow on April 5. They were the first of a group of 60 U.S. diplomats who have been expelled from Russia, after the United States kicked out the same number of Russian diplomats.
Vasily Maximov/AFP/Getty Images
President Trump had a strong message for Russia in their disagreement over Syria, saying in a tweet, "You shouldn't be partners with a Gas Killing Animal who kills his people and enjoys it!" Trump is seen here in the Oval Office at the White House on Tuesday.
This image released early Sunday by the Syrian Civil Defense White Helmets shows a child receiving oxygen through respirators following an alleged poison gas attack in the rebel-held town of Douma, near Damascus, Syria.
Syrian Civil Defense White Helmets via AP