21.  Since mid-December, Iraqi defenses have challenged the planes almost daily, provoking retaliatory strikes.

22.  Since mid-December, the allied planes have targeted Iraqi sites almost daily after being challenged by Iraqi defenses.

23.  Since the agreement, U.N. inspectors led by American Scott Ritter were allowed to enter the Iraqi defense ministry for the first time in seven years.

24.  The allied warplanes have been attacking Iraqi defense sites frequently since mid-December after being challenged with radar, missile systems and anti-aircraft artillery.

25.  The warplanes have occasionally fired on Iraqi anti-aircraft defenses when they take hostile or threatening actions.

26.  Their warplanes continue to spar with Iraqi defense forces.

27.  They have recently launched several missiles on Iraqi defense systems in the north after being threatened and targeted by Iraqi missile systems.

28.  U.S. fighter planes based at Incirlik have struck almost daily at Iraqi defense sites after being targeted while on patrol.

29.  U.S. planes have struck at Iraqi air defense sites for the past several weeks after being targeted by Iraqi defense sites while enforcing the zone.

30.  U.S. warplanes attacked Iraqi defense sites in northern Iraq on Monday, the Defense Department said in Washington.