The Pig Wars 2

At the start of gen 5.5, the hivemind picked a Tepig as their starter, sparking the second pig wars

Operation Charlotte's Web
It involved users spamming "Some Pig" into the chat, in an act similar to Operation Love to try and prevent Tepig from being released. It was named after the book and film of the same name.

Aftermath
Unlike the first Pig Wars, the Hivemind has managed to not kill off Tepig, thanks in part to things like Operation Charlotte's Web, which has earned Tepig the name of Wilbur, and forced evolution, which has allowed Wilbur to evolve to his final form.