Attempt
From Tardis Wiki, the free Doctor Who reference
Prior to the first Nestene invasion, the Brigadier noted that there had been two attempts to invade the Earth since the formation of UNIT, and that both were stopped with the assistance of the Doctor. (TV: Spearhead from Space [+]Loading...["Spearhead from Space (TV story)"])
A "fleet of Alien Monsters" once attempted to destroy the Earth, with Doctor Who gathering the "Legendary Legion" in hopes of averting this fate. (GAME: Doctor Who Trump Card Game [+]Loading...["Doctor Who Trump Card Game (game)"])
