A United States contractor is killed and five others are injured when a drone hits a U.S. base near Al-Hasakah in northern Syria. The United States responds with airstrikes on Iranian-linked targets, killing eleven people.
The United Nations Security Council arms embargo on Iran formally expires. It had been in effect since 2007 and was due to expire under the 2015 Joint Comprehensive Plan of Action. Iranian Foreign Minister Mohammad Javad Zarif says, "Today's normalization of Iran's defense cooperation with the world is a win for the cause of multilateralism and peace and security in our region".
Amnesty International reports that at least 160 young Iranians are currently awaiting execution and 73 others have been put to death between 2005 and 2015, which including sentencing girls as young as 9 and boys as young as 15 to death.
Iranian Foreign Minister Mohammad Javad Zarif meets with U.S. Secretary of State John Kerry during P5+1 and Iran talks, the highest-level direct contact between the United States and Iran in six years.
The US Federal Bureau of Investigation and Drug Enforcement Administration claim to have disrupted an alleged terrorist plot to assassinate the Saudi Arabian ambassador and bombings of the Saudi and Israeli embassies in Washington DC with possible links to Iran.