In most of the cases in which U.S. troops were wounded by chemical agents, the "munitions appeared to have been designed in the United States, manufactured in Europe and filled in chemical agent production lines built in Iraq by Western companies." Saddam Hussein was at one time a U.S. ally. See the infamous photograph of Donald Rumsfeld shaking hands with the notorious dictator. Sadly, our government provided the seeds of destruction to Saddam. He in turn used some of the chemical weapons on the Kurds and the Iranians.