Complex sentence: The Tomcat's turned home but had to turn around again when the Libyans headed towards the US Carriers once more, after being tracked by the F-14's radars once again the MiG's finally headed home.
Split into simpler sentences: The Tomcat's turned home but had to turn around again when the Libyans headed towards the US carriers once more. After being tracked by the F-14's radars, once again the MiG's finally headed home.