The Greek letter delta (Δ) refers to the differences between two data points or parameters. Warfighters throughout human history have wrestled with the pervasive presence of deltas between data ...

Key Points and Summary - A former Army journalist recounts his personal brushes with the special operations world, which led to a deep dive into the U.S. Army's Delta Force, also known as Combat ...

Bob Keller, former US Army Special Forces and Delta Force operator, rates 10 Army special operations scenes in movies and television for realism.

Nicole Pruitt, an Army veteran and grandmother, stopped a passenger from apparently trying to repeatedly enter the cockpit on a Delta Airlines plane last week. "I felt like my life was in danger," ...