Iran's Islamic Revolutionary Guard Corps shoots down an American RQ-4 Global Hawk spy drone after it allegedly violates Iranian airspace.
In an act of cooperation that is rare in recent years, Iran releases Princeton PhD candidate Wang Xiyue while the United States releases stem cell researcher Massoud Soleimani in a prisoner exchange. Both U.S. President Donald Trump and Iranian Foreign Minister Mohammad Javad Zarif thank the Swiss government for facilitating the swap.
An Iranian Islamic Revolutionary Guard Corps weapons depot in Abu Kamal District, Deir ez-Zor Governorate, Syria, is hit by an airstrike. Arab media say Israel is behind the attack. The United States denies any involvement.
The United Kingdom announces it is joining a United States-led naval mission in the Persian Gulf to protect oil tankers, following several seizures in international waters by Iran's Islamic Revolutionary Guard Corps.
The United States Treasury Department announces new sanctions on Iran central bank governor Valiollah Seif and assistant director Ali Tarzali for allegedly helping the Islamic Revolutionary Guard Corps and Quds Force support Hezbollah.
The Foreign Minister of Iran Mohammad Javad Zarif says that the country's missile program would not be up for discussion. This comes as United States Secretary of State John Kerry said last Thursday that the United States and its allies would only address Iran's concerns in the region if it makes it clear to all involved that it was prepared to cease provocative ballistic missile launches and tests.
Iran seizes the crew of two small United States Navy boats near Farsi Island, in the Persian Gulf, after they had allegedly entered Iranian waters. Pentagon spokesman, Peter Cook, told Associated Press that Iran has assured the United States that the crew and vessels will be returned promptly.