Here is how the Timberwolves invade Ponyville and Starlight Glimmer makes her mistake in Equestria Civil War.
(we see a whole bunch of Timberwolves searching the streets of Ponyville)
Twilight Sparkle: Alright is everyone in position? Applejack?
Applejack: Ah'm here.
Twilight Sparkle: Rainbow Dash?
Rainbow Dash: Ready and willing.
Twilight Sparkle: Rarity?
Twilight Sparkle: Pinkie?
Pinkie Pie: I'm here.
Twilight Sparkle: Fluttershy?
Twilight Sparkle: Starlight, you in position?
Starlight Glimmer:(nervous) I'm here.
Twilight Sparkle: Alright, when I give the word, get as many of them into the cage.
(Twilight then gave the signal and they put as many of the wolves in the cage)
Starlight Glimmer:(tries to levitate the cage into the forest)
Applejack: Starlight, wait! You might not get it there!
Starlight Glimmer: I know I can.
(she then loses her focus and the cage crashes into the town hall)
(everyone was shocked at this, as there were a lot of ponies in there)