In an unprecedented and chilling address to the nation's highest-ranking military officials, President Donald Trump declared a "war from within," directing the armed forces to prepare to fight an "enemy from within" that "doesn't wear uniforms." This week on Deep Dive, we unpack the implications of a president telling his generals and admirals that domestic political opponents, dissenters, and citizens in "Democrat-run cities" are enemies to be vanquished. How does the call to use American cities as "training grounds" and the explicit threat to strip officers of their rank for disagreement fundamentally break the long-standing civil-military tradition? We examine the dangerous rhetoric of turning the military inward and what this shift—from defending the Constitution against foreign enemies to policing an 'invasion from within'—signals for the future of democratic governance, the rule of law, and basic civil liberties in the United States. This is a deep dive into the moment many fear American democracy ended, not with a bang, but with a presidential order to turn the guns homeward.#DeepDive #EnemyWithin #EndofDemocracy #TrumpMilitary #CivilMilitaryRelations #Authoritarianism #USPolitics #WarFromWithin #DemocracyInPeril