Prime Minister Junichiro Koizumi indicated Monday that he believes the U.S. already has enough of a U.N. Security Council mandate to go to war in Iraq.

He suggested that an attack could be waged on the basis of previous UNSC resolutions, including resolution 1441, which states that Iraq "will face serious consequences as a result of its continued violations of its obligations."

Koizumi indicated that no fresh resolution is necessary after the United States, Britain and Spain set a Monday deadline for a diplomatic solution to the Iraq standoff.