Division of Planetary Operations
From Memory Alpha, the free Star Trek reference
The Division of Planetary Operations (abbreviated to DPO) was a Federation office on Earth, responsible for, amongst other things, global power distribution. It is based in the city of Lisbon.
In 2372, members of Red Squad infiltrated the DPO on the orders of Admiral Leyton. At 0400 hours, local time, on the 23rd, they sabotaged the power distribution network by downloading a self-replicating disordering protocol into the control system, shutting down every power relay on the planet. The entire operation, from deployment to return, took less than three hours, and the event led to the declaration of a planet-wide state of emergency. (DS9: "Homefront", "Paradise Lost")
