President Trump has threatened to bomb Iran's water supply, marking his most significant breach of laws and norms designed to protect civilians in wartime. This comes as part of a larger effort to increase pressure on Iran, with the U.S. focusing primarily on Iran's military and nuclear program. The threat to hit civilian infrastructure shows that the administration is intent on increasing pressure on Tehran. This follows a pattern of statements and actions by Defense Secretary Pete Hegseth that contradict the laws of armed conflict. These include approving pardons for soldiers convicted of war crimes and firing of top military commands for the Army, Navy, and Air Force commanders in the early months of the presidency.