Strategies:

ETA (Extra Terrestrial Architecture) - designed before EArth ExisTed the ETA is the plan being employed to accomplish their goal.

SETAD (Scheduled ET Architecture Disclosure) - planned disclosure

TechDev - Develop the technology ET planned to have developed on the planet
FinFun - Financial resource funneling into organizations deemed appropriate

Tactics:

War - get the EA to fight among themselves to enable TechDev & FinFun
Taction (Tactical Misdirection) - providing false information to control reality
Subnation (Subliminal Dissemination) - using the terms ET & UFO to prepare for SETAD
Ination (Intellectual Dissemination) - resolving reality with HET & CTV terminology