Why World War 3?

The Decadent 1900s and 1910s in Germany and Russia led to World War I. The Roaring Twenties led to the Depressing 30s and the World War 40s. Where will the insane 70s, 80s, 90s, 00s, 10s, and 20s lead the West? The pride, the power-mongering, and the lust in the hearts of men bring about wars. But also, God brings desolations in the earth as an act of temporal judgment. But how does the church respond to World War III?