More broadly, war critics have argued that the US and Europe supported the Saddam Hussein regime during the 1980s, a period of some of his worst human rights abuses, thus casting doubt on the sincerity of claims that military intervention was for humanitarian purposes. Documents from the National Security Archive released in 2003 show that the US and Europe provided considerable military and financial support during the Iran-Iraq war with full knowledge that the Saddam Hussein government was regularly using chemical weapons on Iranian soldiers and Kurdish insurgents. Following along this line, critics of the use of human rights as a rationale, such as Columbia University Law Professor Michael Dorf, have pointed out that during his first campaign for president Bush was highly critical of using US military might for humanitarian ends.