US forces struck Iran's Revolutionary Guards on Tuesday in response to attempted attacks on commercial shipping and American troops, the US military said, with President Donald Trump vowing a tough response to any counter-attacks. The U.S. Key points and original sources are listed below.

• US forces struck Iran's Revolutionary Guards on Tuesday in response to attempted attacks on commercial shipping and American troops, the US military said, with President Donald Trump vowing a tough response to any counter-attacks. The strikes were the latest i...S1

• The U.S. launched new air strikes on Iranian targets Tuesday following attempted attacks by the IRGC against American troops deployed to the region.S2

• The US launched new air strikes on Iranian targets on Tuesday, quashing hopes that an exchange of fire last weekend might not presage a wider renewal of hostilities. Oil prices had already risen after that first exchange of direct attacks since July and after...S3

• By Timothy Rubb The U.S. military launched new strikes against Iran on Sept. 1 following attempted attacks by the Islamic Revolutionary Guard Corps (IRGC). U.S. Central Command (CENTCOM) said U.S. forces started striking IRGC targets in Iran at 12 p.m. ET on T...S4

• Hostilities sparked back into life on Sunday after the US carried out fresh strikes on what it said were IRGC minelaying forces in the Strait of Hormuz.S5

• U.S. Central Command announced new strikes around the Strait of Hormuz following Iranian attacks on ships and U.S. military personnel.S6

• The U.S. and Iran have been engaged in an intermittent war for more than six months, with the recent lull in fighting lasting a monthS7

• The United States announced Tuesday that it was striking Islamic Revolutionary Guard Corps targets in Iran.S8