Declaration Day

Declaration Day was a horrible day from the IDW portion of the Generation 1 continuity family.

Declaration Day marked the "official" beginning of the Great War. It is remembered by many Cybertronians as a huge turning point in their lives.

Fiction

IDW Generation 1 continuity

Megatron stood atop Nova Peak on Declaration Day, presumably making a grandiose speech to rally the Decepticon forces to war. Rules of Disengagement

Rung retro-dated his first encounter with Red Alert to six months before Declaration Day. How Ratchet Got His Hands Back

To inform Tailgate of the Decepticons' evil, Rewind played back the history of the Great War, including Declaration Day, for him. Life After the Big Bang

Notes

• Presumably, "Declaration Day" would have to do with declaring one's allegiance to the Decepticons or the Autobots.