Iraq ends all forms of cooperation with the UNSCOM teams and expels inspectors from the country.

Last fall, the Iraqis expelled American inspectors, whom Baghdad accused of being spies.

The North is already violating the treaty, by expelling international inspectors and doing preparatory nuclear weapons work.

North Korea withdrew from the treaty and expelled inspectors in 2002, after the United States accused it of violating a previous agreement to end its nuclear program.

North Korea provoked a crisis over the issue in December, when it withdrew from a nuclear nonproliferation agreement and expelled international nuclear inspectors from the country.

North Korea expelled nuclear inspectors from the country and also informed the International Atomic Energy Agency that they would resume their nuclear weapons program.

North Korea expelled international inspectors in late 2002, and without them, it is impossible to independently verify its claims.

Iraq first threatened on Oct. 29 to expel American inspectors, but it has agreed to suspend action until the current round of United Nations diplomacy could be completed.

This tentative reaching-out to the world was dealt a blow in 2002 by Pyongyang's decision to reactivate a nuclear reactor and to expel international inspectors.

Last year, his Government expelled American inspectors, put large presidential compounds off limits and threatened to freeze all inspections.