Inspectors began visiting sites where WMD production was suspected, but found no evidence of such activities, except for 18 undeclared 122mm chemical rockets that were destroyed under UNMOVIC supervision. As was discovered after the invasion of Iraq, no production of WMDs was taking place, and no stockpiles existed. U.N. inspectors also found that the Al-Samoud 2 and Al-fatah missiles violated U.N. range restrictions, the former also being partially destroyed under UNMOVIC supervision. Debate about Resolution 1441 therefore turns on whether, despite the absence of WMDs and the acceptance of inspections, Iraq failed to comply with the terms of the Resolution, and whether an invasion was justified in the absence of any further UN Security resolutions on the subject.