The assault followed an early morning mortar attack on an American base on the outskirts of the city that slightly wounded one soldier.
He correctly recognized that the morning attack had only been a probing action and that another assault would soon follow.
The military assault on the night of June 3-4 and its bloody outcome followed many abortive attempts at compromise.
The assault followed a series of recent raids on mosques and Islamic leaders suspected of supporting the insurgency.
The assault followed an end-of-the-school-year beer party.
The main assault will follow in approximately 5.03 minutes after the diversionary strike.
An assault by Fearless Marines follows, and the Masadan base is captured.
NATO officials said even more severe assaults would follow.
A second assault by 42 Commando followed at 2225 hours.
A sustained assault on the press followed, with newspapers partial to the north being banned and two presses destroyed.