The Grand Compact of Aliens

The Grand Compact of Aliens, also known as  the Alien Combine , is a socio-political alliance of a large number more or less non-homoform breeds, with a dominant/ruling stratum of seven such breeds. Arising in the chaotic wake of the  ProtoEmpire 's collapse, the Compact held sway over the Magellanic Clouds for hundreds of years, eventually attempting to conquer the Milky Way and failing.

Constituent Breeds
The seven breeds making up the dominant stratum in the Compact are: There are many other breeds in the Compact, such as Wellesians and Slinkers, but they generally do not hold any social or political power, though technically "co-equal" to the dominant stratum.
 * Triphibs
 * Araknants
 * Dagyrints
 * Dreefuzzes
 * Blaphirs
 * Swiphins
 * Glyvi

History
Long. (Will add more later; more than 5,000 years to cover.)

Notable Policies
Suppression of MBHs has always been the Compact's primary goal, though usually cloaked under the rhetoric of "equality for non-homoforms". The distinctly second-class role accorded to Wellesians under Compact authority is instructive in this regard.