Reconnaissance, by definition, is a search for useful military information. Dating back to the Civil War when hardy souls went aloft in silk balloons, being in the air to see what the other side is doing has been critical to military doctrine. Lockheed Martin's expertise in reconnaissance and its sea going equivalent, maritime patrol, dates back to the company's earliest days. Today, the U-2 Dragon Lady and P-3 Orion are this country's eyes in the sky.