When a country needs special help . . . it calls for the Special Forces. Elite, highly-trained military units can get the job done, no matter how hard the task or how remote the operation. It takes a special breed of person to simply survive the extensive training, but once they do, they join a legacy of success that has changed history. Inside, read about Navy Seals, Army Rangers, Delta Force, and other top-notch units from around the world. Adventure, courage, talent . . . and service-they can all be found in the stories of brave men and women who go . . . ON A MISSION. Each title in this series contains color photos, close ups of key tools and technology used on each mission, and back matter including: an index, further reading lists for books and internet resources, and a series glossary. Mason Crest's editorial team has placed Key Icons to Look for throughout the books in this series in an effort to encourage library readers to build knowledge, gain awareness, explore possibilities and expand their viewpoints through our content rich non-fiction books. Key Icons are as follows: Words to Understand are shown at the front of each chapter with definitions. These words are then used in the prose throughout that chapter, and are emboldened, so that the reader is able to reference back to the definitions- building their vocabulary and enhancing their reading comprehension. Sidebars are highlighted graphics with content rich material within that allows readers to build knowledge and broaden their perspectives by weaving together additional information to provide realistic and holistic perspectives. Text Dependent Questions are placed at the end of each chapter. They challenge the reader's comprehension of the chapter they have just read, while sending the reader back to the text for more careful attention to the evidence presented there. Research Projects are provided at the end of each chapter as well and provide readers with suggestions for projects that encourage deeper research and analysis. A Series Glossary of Key Terms is included in the back matter contains terminology used throughout the series. Words found here broaden the reader's knowledge and understanding of terms used in this field.