[U.S. Department of Defense: U.S. Military Casualties Total 642 Due to Iran Conflict] Golden Finance reports that on July 27, the 'Defense Casualty Analysis System' website, affiliated with the U.S. Department of Defense, updated its statistics on July 26. The data shows that since the large-scale military operation jointly launched by the U.S. and Israel against Iran on February 28, the total number of U.S. military casualties has reached 642, including 18 deaths.