Submarines lurk unseen beneath the waves. They circle the globe, even sailing beneath the North Pole. This silent patrol can be deadly. Modern submarines are launch platforms for long-range missiles that can be armed with nuclear warheads. But sailing under the water places unique demands on vessels and their crews.

Find out about leading submarines from around the world - including their technical specifications.

Learn about the history of submarines - from their first use - through incredible developments, right up to the latest, cleverest machines around today.

Ultimate Military Machines delves into the incredible world of fighting machines and takes an upclose look at the latest technology used by the army, navy and air forces today. Each title takes an indepth look at one type of military vehicle - from its first use in warfare up to recent conflicts.

This book is part of a book series called Ultimate Military Machines .

There are 32 pages in this book. This book was published 2018 by Hachette Children's Group .

Tim Cooke is the author of National Geographic's Ancient Aztecs: Archaeology Unlocks the Secrets of Mexico's Past and Concise History of World Religions: An Illustrated Time Line .

This book has the following chapters:

• 1: Introduction
• 2: What is a Submarine?
• 3: Submarine Mission
• 4: Nuclear Weapons
• 5: Submarine Firepower
• 6: Missile Ready
• 7: Sensors
• 8: Submarine Crew
• 9: Submarine Jobs
• 10: Submarine History
• 11: World War II
• 12: Falklands
• 16: Modern Wars
• 17: Gallery
• 18: Glossary
• 19: Further Reading
• 20: Index