U.S. forces hit three Iranian oil tankers.

This happened after Navy ships came under missile attack.

The American military said this on Saturday.

It warned it would destroy Iran's oil fleet if needed.

It called the fleet small and easy to see.

Experts called this a dangerous step up.

Iran had earlier attacked ships that carry goods.

The U.S. said its move was an answer to that.

The strikes came one day after President Donald Trump called the fight "small potatoes."

Now the two sides are fighting again.

The war stopped for six months.

It started on Feb. 28 with U.S. and Israeli attacks on Iran.

The military said an American aircraft carrier and a destroyer moved away from attacks.

It said Iran attacked without a reason.

No U.S. people were hurt.

Two Iranian oil ships were broken for good.

A third ship had no oil on it.

That ship was destroyed.

Iran's military leaders sent a warning.

They said attacks on U.S. ships will be worse if the U.S. keeps stopping Iranian ships.

State media reported this.

Danny Citrinowicz is an expert on Iran.

He works at Israel's Institute for National Security Studies.

He said the missile attack on a U.S. carrier showed Iran now takes risks.

Before, it did not take these risks.

The U.S. said one tanker was hit near Kharg Island.

Another was hit near Jask.

The third ship was in the Gulf of Oman.

Its crew was told to leave the ship.

The new strikes came almost one week after the U.S. and Iran started fighting again.

Before that, there was one month of quiet.

Earlier in the week, at least five people died in a U.S. attack on southern Iran.

One strike hit a wedding.

Two teenage girls were hurt in that attack.

They talked to reporters in a hospital.

They told about explosions and injuries.

The Trump administration uses military action and also pressure on banks that handle Iran's money.

Vice President JD Vance said talks are not likely while Iran attacks ships.