When the corrupted void of Hell did what they did to all ponies, they have Equestrian-made American weapons and vehicles. They noticed that they saw the Tripod War Machines attacking every ponies standing on their way.

The Tripod War Machines of the United Earth Federation eleiminates and grounds the ponies to ashes with their Heat-rays. The void-corrupted ponies and the ponies nocited the Tripod War Machines killing every equestrian ponies. Who is the responsible for sending these dangerous War Machines? Why the UEF Military arrives in and slaughtered all those lovely ponies?