In 1976, TPLF published in its founding manifesto plans to create an independent Tigrinya-speaking “Republic of Greater Tigray” by expanding “its” territory in northern Ethiopia to include the lands of neighboring ethnic groups, acquiring coastal lands within Eritrea and seceding from Ethiopia to form a new republic.
Aspirations for an independent expanded Tigray were first expressed in the 1940s by the meddling of British colonialists in Eritrea who proposed a union between Eritrea and northern Ethiopia, which they called “Greater Tigrai”
It's wasn't even their idea, but they are willing to squander 900,000 lives for it.
(New Africa Institute) -
Disinformation in Tigray: Manufacturing Consent For a Secessionist War

PDF file.
http://dehai.org/dehai/assets/dehai/202 ... rt%202.pdf