It celebrates the end of the 40-day Ashura period honoring Hussein's martyrdom.

CNN: Pilgrims flood Karbala on final holy day

The report, which was signed by U.S. Defense Secretary Leon Panetta and sent to senators and U.S. representatives on defense committees, said Iran is continuing to develop other missiles that can hit Israel and Eastern Europe, including an extended-range Shabab-3 and a medium-range ballistic missile called the Ashura that can fly more than 1, 200 miles.

CNN: STORY HIGHLIGHTS