Planetary evacuation

In 2368 of the Federation universe, the Deltan Prime Minister had Jahson order a planetary evacuation when Delta IV was attacked by the Borg-Cyberman Fleet. (COMIC: Assimilation²)

In an alternate timeline, the First Doctor and Captain Parlos organised an evacuation of Urbinia after the Daleks attacked the planet with the Time Destructor. The whole operation went badly. The Dalek Fleet intercepted every ship leaving a city and they all surrendered, leaving the capital, Kiria, effectively besieged. The Second Doctor managed to restore the original timeline. (AUDIO: Daughter of the Gods)

When the Entity attacked Skaro, the Daleks attempted to evacuate the planet. Though many ships were destroyed before they could reach orbit, several Dalek flying saucers managed to warp away. (WC: The Sentinel of the Fifth Galaxy)