The Keystone:

[Divide] US over the course of time until

US became numb [THEN]

[Conquer] US w/ US military during crisis.

Actual:

[Their plan] got got.

You [/_] may be cunning but your demons [DS] are illogical.

"Say WHEN"

(learning comms)

Psalm 90_12 (thx Sean @ SGT[RP&WH_CS,0329,01:05:00]).

Paint the picture.