TOP500 The 10-megawatt IBM Summit supercomputer is unveiled at Oak Ridge National Laboratory, East Tennessee. With a reported 200 petaflops of processing power, it is expected to top the list of the world's most powerful computers after this June's update is presented at the International Supercomputing Conference.
Killing of Susanna Feldman Ali Bashar, the main suspect in the murder and rape case of a 14-year-old German-Jewish girl in Wiesbaden, Germany is arrested by Kurdish forces in Northern Iraq.
Syrian civil war A U.S. federal judge blocks until June 20 the release in Syrian Democratic Forces-controlled territory of a dual-nationality Saudi-American citizen alleged to have joined ISIL. The man, who is now held for nine months in Iraq, was planned to be released by the U.S. military – with a new cell phone, some food and water and $4,210 in cash, but with no identification – as soon as tomorrow.
Jean-Pierre Bemba Jean-Pierre Bemba is acquitted of war crimes by the International Criminal Court appeals chamber.
44th G7 summit U.S. President Donald Trump calls for Russia, which was suspended from the group after the annexation of Crimea in 2014, to be reinstated in the group; a call supported by the Prime Minister of Italy Giuseppe Conte, and rejected by most other G7 leaders.
Leaders from the Group of Seven meet in La Malbaie, Quebec, Canada to discuss issues facing their countries, including trade between the United States and European Union.
Russia–United States relations The military chiefs of both countries, Joseph Dunford and Valery Gerasimov, meet in Finland.
Embassy attack accusations in Cuba The United States expand their health alert from Guangzhou to all of China, after it repatriated multiple employees with symptoms resembling a brain injury.
Economy of Japan Due to a change in Japanese legislation, Airbnb announces that it will be cancelling thousands of reservations made in the country.
The economy Gavin Patterson, the chief executive of BT Group, announces that he intends to step down later this year.
Weinstein effect The Walt Disney Company announces that its animation chief, John Lasseter, will leave the company after December 31, after he was accused of misconduct late last year.
Somali Civil War (2009–present) A U.S. special forces soldier is killed and four others are wounded in an ambush by suspected al-Shabaab militants near the town of Jamame, Lower Juba, Somalia.
2018 Gaza border protests On Quds Day – the last Friday of Ramadan – thousands of Palestinians protest near the Gaza border fence. Israeli troops fire live rounds and tear gas, killing four people and injuring over 600.