As foretold by Dark Spector before his demise in the third century, Unagi Garenth, son and heir to the Dark Spector, awakened from within his Energy Prison (3017AD in Beta Morphin Grid, 300AD in Delta Morphin Grid), having unconsciously been aware of all events and life forms in all three Morphin Grids.
Though immobile inside the prison, Unagi could telepathecilly communicate with scattered life forms and thus he enlisted selected Monarchs as Lieutenants and Generals into his elite army, beginning Grid-wide attacks immediately, thus was the beginning of the Monarch Invasion.
To this day, the invasions continue. And with each new territory conquered, more and more life forms are recruited into Unagi's armies.
The following casualites include:
From the Alpha Morphin Grid:
None. When Ninjor of the Beta Grid sacrificed himself in 300AD, his life force energy-wave severed the link between the Alpha Morphin Grid and the Beta and Delta Grids