Two roadside bombs near Hilla, south of Baghdad, hit American troops and Iraqi police patrols.
In one incident, Philippine warplanes hit pro-Government troops and civilians, killing at least 6 people and wounding 20, military officials said.
In the past three weeks, an unidentified enemy deploying ever more sophisticated military tactics and powerful weapons, including mortars and land mines, has been hitting American troops, day and night.
The fighting was so close that howitzers stopped firing for fear of hitting friendly troops.
The Iraqis hit Iranian troops on mountain tops near Haj Omran with mustard gas while their troops advanced in the slopes.
Fear of hitting troops on the beaches forced the Allied ships to withhold their fire when aiming at the low-flying planes.
She fired another three rounds later in the day, but had to cease fire to avoid hitting friendly advancing troops.
Not wanting to fire the machine-guns for fear of giving their positions away or hitting friendly troops, the Australians resorted to using grenades forward of the perimeter.
It seems an obvious choice - but it can strike back in ways Mr. Hussein can only dream about, hitting American troops and allies.
They also hit troops, supply depots, roads, bridges, rail lines, and trains.