Fire Ants 3D The Invincible Army 2012. For over 80 years, Solenopsis Invicta has marched across the United States, causing six billion dollars annually in damage and killing at least 80 people. Scientists now crack the ant's ancient secrets to success and breed winged assassins to hunt them down. Stunning 3D macro photography explores the insect's secret world and the cutting-edge research into stopping it.