Addressing a press briefing, Rubio said Washington's actions are aligned with international appeals and credited US President Donald Trump for responding to the situation.

"President Trump stepped up and answered the calls for their help," said Rubio, claiming that "Project Freedom" is the first step to reopening the strait and bringing Iran's "last-ditch act of economic arson to a close".

He further asserted that the US is uniquely positioned to carry out the mission.

"We're doing it not only because we were asked but also because we're the only ones who can," Rubio added.

Reiterating Washington's broader objective, Rubio said the administration wants the Strait of Hormuz restored to normal maritime operations, with unrestricted commercial navigation, noting that Washington preferred the Strait to go "back to the way it was".