Iraqi President Saddam Hussein has warned that anyone who tries to invade his country will be defeated. In a defiant speech to mark the 12th anniversary of the start of the Gulf War, the Iraqi leader said his people were determined to make any new invading force "commit suicide" at the gates of Baghdad. He was speaking as the UN's chief weapons inspector, Hans Blix, was briefing French President Jacques Chirac on the discovery of what monitors have described as empty warheads designed to carry chemical weapons. The 11 warheads were found on Thursday at the Ukhaider military storage facility - Iraq said they were merely empty rockets that had expired.