Putting Saturday's missile strikes in context.

International coalition's first efforts appear successful, according to one report.

Gaddafi remains defiant. His troops do not appear to be pulling back as West begins military intervention.

U.S., British and French forces fire missiles aimed at taking out Libya's ability to defend against a no-fly zone.

Gaddafi says "ground of war" has been opened and threatens retaliation. Obama said he is "proud" of mission. Assessment of first round of fire to begin late tonight when new day dawns in Libya.

U.S. naval forces fire more than 100 Tomahawk cruise missiles at Libyan targets. Pentagon says this only first phase of multi-phase operation. Earlier, French warplanes struck Libyan tanks on the outskirts of Benghazi. Canada, U.K., and Italy also join the operations.

French President Nicolas Sarkozy says the residents of Benghazi need international help. Secretary Clinton stresses that the United States is only a supporter, not a leader in the effort to stop Gaddafi.

Secretary of State speaks with Sarkozy, will meet rebel leaders

VIDEO: See Gaddafi's speech comparing himself to the British Queen.

President Obama talks with leaders of Italy, France and England, Gaddafi's funds expected to be seized, Opposition surges on heavily fortified Tripoli, U.S. worries about chemical weapons.