1.   NATO put a few holes in a Serbian airfield, damage that could be repaired in a matter of days.

2.   The United States is demanding to know why U.N. observers were barred from Serbian airfields at a critical time.

3.   U.S. officials said the missile attacks would be followed by successive waves of attacks by NATO warplanes against Serbian airfields, military warehouses, tank depots and other targets.

4.   U.N. military observers stationed at a Serbian airfield close to the Bosnian border were refused access to radar screens at the time the helicopters reportedly flew, Risley said.

5.   U.N. observers are at six Serbian airfields.