Complex sentence: On January 5,1999, two F-14Ds on patrol over Iraq encountered two Iraqi MiG-25s, the Tomcat's fired two AIM-54 Phoenix missiles, the first ever combat-launch by the US Navy.
Split into simpler sentences: On January 5,1999, two F-14Ds on patrol over Iraq encountered two Iraqi MiG-25s. The Tomcats fired two AIM-54 Phoenix missiles, the first ever combat-launch by the US Navy.