Russian President Vladimir Putin, Iranian President Ebrahim Raisi, and Turkish President Recep Tayyip Erdogan pose for a photo before a trilateral meeting on Syria in Tehran on July 19.
U.S. President George H.W. Bush (L) addresses delegations of the Middle East Peace Conference as Soviet counterpart Mikhail Gorbachev listens,on October 30, 1991, during the opening ceremony at the Royal Palace in Madrid, Spain.