President Donald Trump has been receiving options for expanding the military operation in Iran, according to two people familiar with the matter, including during a Situation Room meeting on Tuesday that centered on ways to intensify efforts to loosen Iran’s grip on the Strait of Hormuz.

Trump has publicly said he intends to strike Iran harder over the coming week, including threats on civilian infrastructure and potentially energy targets. Behind the scenes, he has been discussing various scenarios for future military action with senior officials, hoping to identify ways to pressure Iran into submitting to US demands after existing efforts have failed to bring Tehran to heel.

Over the past five days, the US has carried out daily strikes on Iranian positions along the Strait of Hormuz, including Wednesday on tiny Greater Tunb Island in the Strait of Hormuz, which has acted as a base for the Iranian military.

Officials said the strikes are intended to degrade Iran’s ability to prevent commercial vessels from transiting the waterway. But destroying targets like missile launchers and radars could also lay the groundwork for the larger US military operations Trump has been mulling, officials said.