Planetary Relocation Incident

The War was within the Medusa Cascade and was fought against Davros's New Dalek Empire. Daleks were sent to attack all military installations, such as base in New York where Project Indigo was researched. The Daleks were able to quickly overwhelm the combined Human forces. The Unified Intelligence Taskforce was heavily involved in resisting the Dalek invasion fleet, even sending the Valiant to take on the Daleks although it was destroyed due to the large number of Daleks, with their powerful weapons, that swarmed the vessel.

After the loss of the Valiant and numerous other military installations and personnel, the Humans broadcasted their surrender to the New Dalek Empire. Humans were then rounded up by the Daleks, with those who resisted being exterminated, and taken away to the Crucible for an unknown variety of tests and experimentation.

Although the Earth lay in defeat and ruin, Harriet Jones was able to use a Sub-wave communications network to find and communicate with Torchwood 3, Sarah Jane Smith and Martha Jones, calling. After being able to boost the power to contract the Doctor, the Daleks were able to locate and apparently exterminate Harriet Jones.

Before her death, Harriet Jones had transferred control of the now-detectable Sub-wave network to Torchwood 3. The Supreme Dalek then had a  Dalek Saucer sent to attack and destroy Torchwood 3. Gwen Cooper and Ianto Jones were left to defend the Hub as Captain Jack Harkness had left to find the where the TARDIS had landed.

Sarah Jane Smith also encountered Daleks when she left her home to find the Doctor.