The United States has conducted military action in seven nations since President Donald Trump took office, including Iran. Since his presidency, the administration has also expanded counterterrorism operations in Somalia and Iraq, killing the second-in-command of the Islamic State. The first attack on Iran took place in June, but only one of the three nuclear facilities were destroyed. In December, the U.S. also targeted Islamic State targets in Syria in response to an attack that killed two U.K. soldiers and a civilian U.N. interpreter.