Sons of Earth
From Tardis Wiki, the free Doctor Who reference
The Sons of Earth was an organization of humans during Earth's Imperial period.
They were opposed to the colonization of other worlds, the exploitation of their resources, the disruption of native peoples and the destruction of native ecosystems.
Rohm-Dutt pretended to be working for them, supplying guns to the Swampys. He described them as a "crank" organisation that wanted all humans to return to Earth and starve. (DW: The Power of Kroll)