The U.S. military will work to bolster the defensive posture in the Gulf region following Iran's seizure and harassment of commercial shipping vessels in recent months, U.S. officials said on Friday.
In the past two years, Iran has harassed, attacked or interfered with the navigational rights of 15 internationally flagged commercial vessels, officials said.
"The Department of Defense will be making a series of moves to bolster our defensive posture in the Arabian Gulf," White House spokesperson John Kirby told a news briefing.
Kirby added that in the coming weeks there would be an attempt to "increase coordination and interoperability" with allies in the Strait of Hormuz.
The U.S. Navy's Bahrain-based Fifth Fleet said it was working with regional allies to increase the rotation of ships and aircraft patrolling around the Strait of Hormuz.