
“What if they gave a war and no one came? Then the war will come to you.”
Amalgamation of Carl Sandburg's quote "Sometime they’ll give a war and nobody will come" with a sentence from Brecht's Koloman Wallisch Kantate: "When the people are disarmed / War will come" ("Wenn das Volk entwaffnet ist / Kommt der Krieg"). - Source http://www.cyberussr.com/hcunn/q-war-nobody-came.html
Misattributed